Answer: Question 5. Electrochemical information involving neurons. Question 13. Respiration by lungs is called pulmonary respiration Reptiles, Mammals have that. Question 12. Answer: Name the excretory organs of an earthworm. They are found in the lining of stomach and intestine and help in recreation and absorption. Foregut- It is also known as stomadaeum and is divided into buccal chamber, pharynx, oesophagus, crop, and gizzard. Match the terms in column I with those in column II: (a) Compound eplthellum – (i) Alimentary canal Question 8. Epithelial tissues provide covering to the inner and outer lining of various organs. What are the following and where do you find them In animal body. Question 3. Answer in one word or one line. Fat bodies and nephrocytes are subsidiary organs of excretion. Tadpole. Although diverse, insects are quite similar in overall design, internally and externally. It is a cylindrical and tubular structure present above the labium between maxillae. What type of mouth parts are seen in cock-roach? The nervous system of cockroach consists of the central and periphernal systems, The central nervous system is made of ganglia and nerve, cords, whereas the peripheral nervous system is made of nerves arising from the ganglia. 2. The cells of epithelial tissues are compactly packed with little intercellular matrix. They cover the dry surface of the skin, the moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and of pancreatic ducts. Answer: (ii) Where is It found In human body? Answer: Neurosecretory cells-Neurons have electrical activity but involved in the production and release of neurosecretion that produces their effect as chemicals. Question 13. Answer: Excretion is performed by un malphigian tubules in cockroaches. Answer: suh-oesophageal ganglion. E.g. Integration is the sorting and evaluation of information. The junction between midgut and hindgut. Question 10. Answer: Liver secretes bile into duodenum. Question 14. No calcium and phosphorous salts are present in the matrix. What are anal styles? (ii) Mandibles: The mandibles are a pair of small triangular, stout unjointed sclerotized structures present on either side of the mouth. (D. Kannada 2006) (a) Simple epithelium: Composed of a single layer of cells and functions as a lining for body cavities, ducts and tubes. Answer: The Nervous System and a Cockroach By: Cassidy Widlowski. Answer: Question 14. Circulating Fluid in Cockroach 3. The insect nervous system consists primarily of a brain, located dorsally in the head, and a nerve cord that runs ventrally through the thorax and abdomen. 05,08, U.Kannada 08, D.K. Answer: A functional diagram of the typical cardiac nervous system in the middle abdomen. They are embedded in the epidermal pits in the middle of each segment. (f) Osteocytes – (vi) Phallomere Found in the inner lining of bronchioles. Circum oesophageal Connectives:-These are thick ends of nervous tissue arising from the base of the brain and called commissures. Question 22. c – (y) The network of neurons acts as a central pattern generator.It is a model system for motor pattern generation because of the small number of cells, which are comparatively large and can be reliably identified. (i) Labrum: This is also known as upper lip. Blood vascular system: Pheretima exhibits a closed type of blood vascular system consisting of blood vessels, capillaries and heart. Ganglia are segmentally arranged on the nerve cord and they give nerves to the organs of that segment. This is not called a true segment as it doesn’t contain typical organs of an annelida. The paired ganglia of the first (frontmost) head. Cardiac motor system is cross-hatched and neurosecretory system is dotted. Question 12. 2. Answer: Answer: Endocrine system - Endocrine system - Class Insecta: Neurosecretory, neurohemal, and endocrine structures are all found in the insect endocrine system. Answer: Answer: Question 10. The structure and function of the deuterocerebrum in insects. Answer: They collect the nitrogenous wastes from the haemolymph and send them into the intestine. Dense irregular connective tissue has fibroblasts and many fibres that are oriented differently. Answer: Frog and earthworm show that. Answer: Write four functions of bones. (c) The body wall of earthworm The AL receives inputs from the third (terminal) antennal segment (the flagellum, which is, (singular glomerulus). Peripheral Nervous System of Cockroach: The nerves originating from the nerve ring and ventral nerve cord to innervate different parts of the body constitute the peripheral nervous system. Supra oesophageal ganglion:- are a pair of ganglia found in the head & form the brain. 1. So, if the head of cockroach is cut off it will still live for long as one week. Unmyelinated nerve fibres are commonly found in spinal and cranial nerves Which of the above statements are true? 3. b – (iv) (Belgaum 2004) Answer: What is pulmonary respiration? Each tubule is lined by glandular and ciliated cells. This is commonly found in ducts of glands and tubular parts of nephrons in kidneys and its main functions are secretion and absorption. It consists of ileum, colon, rectum. (i) Striated muscles. The supra-oesophageal ganglion supplies the nerves to antennae and compound eyes. Ten segments. Setae:-Their principal role is locomotion. Blood. (c) Dense regular and dense irregular connective tissues Subject Matter of Circulatory System in Cockroach: Cockroach being an insect possesses an open circulatory system. The foregut/stomodium consists of the mouth, pharynx, oesophagus, crop and gizzard. Their nuclei are located at the base. Question 10. Neural adaptation is a change over time in the responsiveness of the sensory system to a constant stimulus. Respiratory exchange occurs through moist body surface into their bloodstream. Question 6. Question 2. AL, antennal lobe; DV, dorsal blood vessel; L, lamina; LCB, lower central body; Lo, of the fly (an insect with particularly good vision) contains about, (MB, corpora pedunculata, 'stalked bodies') are best, ). It has sensory/receptor cells. (B.North, Shimoga, Gulbarga, Belgaum, Chikmagalur 2004, D.Kannada, Hassan, Mysore, Kolar, M.Q.P. (b) Compound epithelium: consists of two or more cell layers and has protective function as it does in our skin. Answer: List the mouthparts of Cockroach. It has a long and coiled alimentary canaldivided into- foregut, midgut, and hindgut. which must be broken down by catabolic reactions into smaller molecules (i.e. 2 large ovaries are found lying laterally in the 2nd to 6th abdominal segment. They help in the excretion of wastes. (iii) What is the position of ovaries in cockroach? Inputs to the AL appear to be mainly or exclusively from chemoreceptors, is an additional free and single (unpaired) median (median = in the midline) ganglion that is, . Differentiate between smooth muscles and cardiac muscles. Question 5. Ligament is not part of gland. Answer: Neuron is not a connective tissue. . Mention briefly about the circulatory system of earthworm Cockroach, (ii) How many spermathecae are found in earthworm? (c) Ciliated epithelium The insect brain is a fusion of three pairs of ganglia, each supplying nerves for specific functions. It is connected to two sub-pharyngeal ganglia lying below the pharynx. between adjacent vertebrae in the vertebral column. Periplaneta americana (Kolar 2005). Answer: Question 4. They are the excretory organs of a cockroach. ... By seeing the cockroach, the sensory neurons in the nervous system that react from external stimuli from our own surroundings are then turned into internal impulses. (B’lore North 2004) The tritocerebrum also innervates the labrum. Bone marrow. As we have seen insects can measure time, by the use of internal body-clocks, and, is a higher form of learning, similar to transfer learning, in that it takes prior learning and applies that to a, Peripheral nerves may be sensory or motory, but in insects are generally mixed. Answer: Answer: Answer: Question 9. Mention one place where it is located in human body. Question 24. Septal nephridia: present on both sides of intersegmental septa of segment 15 to the last that open into intestine. Give reason. It represents the tongue of the cockroach. Sarcomere. It is found beneath the skin. circum – oesophageaÌ connectives and double ventral nerve cord (see figure). (a) Prostomium and peristomium I and III only. Osteocytes. 2009) Collagen and Elastin. Answer: Question 9. Nervous system-Is involved in rapid transfer of short-term events and coordination of short-term events. Draw a labelled diagram of alimentary canal of a cockroach. Areolar connective tissue serves as a support framework for epithelium. It is short, tubular and lined with glandular endoderm. III. Cockroach feeds on all kinds of substances like leather, paper, cloth etc., hence called omnivorous. Answer: Question 6. Psudostratified Epithelium is the epithelial tissue made up of a single layer of columnar cells, but appears two layered because some cells are shorter than others and have their nuclei at different levels. Mouth parts: On the ventral side of the head mouth is present. Insects enter a dormant or semi-dormant state, occurs in insects. You can Download Chapter 7 Structural Organisation in Animals Questions and Answers, 1st PUC Biology Question Bank with Answers, Karnataka State Board Solutions help you to revise complete Syllabus and score more marks in your examinations. Digestive and Excretory Systems . (e) Simple gland and compound gland Pharyngeal nephridia, present as three paired tufts in the 4th, 5th and 6th segments.Both are same structurally and functionally. The sensory cells, central nervous system component, and … The escape response due to air currents on the anal cerci is well studied. What are the cellular components of blood? They act as depot of calcium and phosphorous. Earthworms lack specialised breathing devices. These are thought to function as higher centres, receives inputs from the mushroom bodies and integrates, which send their axons to the pair of corpora cardiaca (see the, Another function associated with the protocerebrum is time-keeping. Answer: What is tergum? Mandibulate/ Chewing type. : Salivary glands secrete saliva into buccal cavity. The prementum bears a pair of outer paraglossae and a pair of inner glossae. Question 53. Answer: Question 8. Answer: The thoracic ganglia give out nerves to the muscles of legs and wings and abdominal ganglia give out nerves to abdominal muscles, heart, spiracles & reproductive organs. (Belgaum 2004) In addition to learning routes, insects can, a type of digger wasp, which brings back food to its developing young in the nest, the wasp. e.g. Three types of nephridia are found. Answer: Insect activity is timed with the daily light/dark cycle - the, ('ciracdian' means 'about a day', the exact time being set each day according to environmental cues such, or time-givers) such as the number of hours of light and dark. Name the functional contractile unit of the muscle. Their secretions are called hormones. Answer: Question 5. Name any two secretions of them. The head holds a bit of a nervous system while the rest is situated along the ventral (belly-side) part of its body. Answer: An insect uses its digestive system to extract nutrients and other substances from the food it consumes. The nervous system of cockroach consists of the central and periphernal systems, The central nervous system is made of ganglia and nerve, cords, whereas the peripheral nervous system is made of nerves arising from the ganglia. It is a small flap like structure which covers the mouth dorsally. The maxillae help in holding and pushing the food into the mouth during swallowing. Sensation is the detection of an organism’s environment and gathering of information. Answer: Answer: They are S-shaped. Coxa is not part of thorax. Simple epithelium is composed of one layer of cells while compound epithelium is composed of more than one layer of cells. The hindgut is differentiated into an anterior short, narrow ileum, middle long wide coiled colon and a terminal short dilated sac like structure the rectum which opens to the exterior by anus. The principle excretory organs of cockroach consists of malpighian tubules. Respiration by skin is known as cutaneous respiration. It can be killed successfully by drowning in water. Three pairs of nerves originate from the supra-oesophageal ganglion—optic, antennary and labrofrontal nerves. (v) Hypopharynx: This is also known as lingua. Mention four sites in adult human body, where cartilage is present. Motor Neuron Sensory Neuron Cockroach Eye Central Nervous System Leg The eye sees the Cockroach which the sensory neurons then send an impulse to the CNS that is split into two, one a reaction that is sent to a motor neuron Answer: It serves as a support framework for epithelium. This paralyzes the front legs of the cockroach. 1. What is meant by cutaneous respiration? Four pairs. Answer: Answer: What Is a nymph? (B’lore South, B’lore North 2004) Imagine this: You are just coming home from a long day of school, and the minute you step in the door, you set your backpack down on the ground. Answer: What are exocrine glands? f – (vii) Answer: (i) What is the function of nephridia? They show alternate dark and light bands called striations. Notify me of follow-up comments by email. (ii) How many types of nephridia are found in the earthworm, based on their location? Answer: Answer: Since striated muscles are attached to the bones, they are called skeletal muscles. a – (iii) The jaws of cockroach are called mandibles. The Stomatogastric Nervous System (STNS) is a commonly studied neural network composed of several ganglia in arthropods that controls the motion of the gut and foregut. Explain the mouth parts of Cockroach. Insects certainly exhibit circadian cycles. Distinguish between the followings. Roaches' heads house their eyes, antennae and mouthparts. These fibrous proteins provide strength, elasticity and flexibility to the tissue. Crop is thin-walled sac, present in the whole of the thorax and serves as a reservoir for food storage. Answer: Answer: Answer: However, much of their nervous system activity takes place in nerve ganglia located throughout their bodies. There are nine segmental ganglia, of which three pairs are thoracic, six pairs in the abdomen i. e 1st five lie in the first five abdominal segments, the last is large & found farther behind. Homberg, U. Christensen, T.A. Why are striated muscles called Skeletal muscles? I. Somatic neural system relays impulses from CNS to skeletal muscles. (iv) How many segments are present in the abdomen of cockroach? The nervous system of cockroach is spread throughout the body. Actin and Myosin filaments. Question 3 They give off several nerves to the mouth parts. d – (ii) Question 7. Subject Matter of Circulatory System in Cockroach 2. An isolated cockroach leg exhibits another phenomenon related to learning - sensory habituation. Question 16. (iv) Labium: The labium or lower lip lies behind the maxillae. Mention the function of the following. Answer: Integumentary nephridia: attached to lining of the body wall of segment 3 to the last that open on the body surface. What technical term Is given to bone cells? Answer: Contractions keep blood circulating in one direction. If the columnar or cuboidal cells bear cilia on their free surface they are called ciliated epithelium. I and II only. Differentiate between loose connective tissue and dense connective tissue. 06, 07, 08, Koppala, Tumkur. Answer: Answer: Mark the odd one in each series: (a) Areolar tissue; blood; neuron; tendon Tergum is a dorsal chitinous plate of the exoskeleton of cockroach. Answer: Each maxilla is differentiated into a basal segment consisting of cardo and stipes, terminal segment consisting of outer larger part called galea and inner stouter part called lacinia. At the junction of gizzard and midgut 6 – 8 short fingerlike hollow tubes arise called hepatic caecae. In a cockroach, the nervous system is spread throughout the body. Answer: (d) Open circulatory – (iv) Mosaic vision Cartilage is not part of blood. In the locust, the HG sends out one pair of outer oesophageal nerves (and one pair of inner. 1st PUC Biology Structural Organisation in Animals One Mark Questions. The terminal abdominal segment has anal styles and anal cerci. The first sting targets the first thoracic ganglion, part of the central nervous system. Spiracles are the openings of the respiratory system (trachea) in cockroach. Brain is formed by the fusion of a pair of cerebral ganglia, it lies in the anterior and dorsal part of the third segment. In males, it also conducts the sperms. 3. Question 18. Name the type of tissue that is most abundant in animal body. Dissection of Nervous System 4. (c) Body wail an earthworm Draw a neat labelled diagram of the digestive system of cockroach. (e) Protonema; mesothorax; metathorax; coxa Answer: (i) What is the function of nephridia? Blood is a fluid connective tissue. Male cockroach. Answer: Central Nervous System of Cockroach: The central nervous system consists of the supra-oesophageal ganglion or brain, sub- oesophageal ganglion and the nerve cord. What is pscudostratified epithelium? Blood is the fluid connective tissue. Periplaneta Americana Each leg consists of five joints. Answer: (a) Chondriocytes Question 7. Answer: (i) Give the common name of Periplanata americana how to draw respiratory system of cockroach. Question 25. 1st PUC Biology Structural Organisation in Animals Five Marks Questions. Answer: Hindgut- It is also known as proctodaeum. (iii) Maxillae: A pair of maxillae are present beneath the mandibles and treated as additional jaws. The suboesophageal ganglion (SOG) and the segmental ganglia of the double ventral nerve-cord each send out pairs of, , in which case the lateral abdominal nerves send out nerves to innervate the, From the suboesophageal ganglion two connectives  or nerve cords run back along the ventral side (underside) of the, are contained in the ganglia, but the brain is normally required to switch them on and off. It is the main organ of digestion and absorption. Question 15. Connective tissue. This tissue is present in the skin. Question 8. (i) Give the common name of Periplaneta Americana. Describe the nervous system of an earth-worm. Striated muscles are present near articulatory joints. Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, nucleic acids, etc.) The mentum posses a pair of labial palps. What do fibroblasts synthesize? Red blood cells and white blood cells are the cellular components of blood. (g) Genitalia – (vii) Bone Answer: The nervous system of cockroach consists of a nerve ring and a ganglionated double ventral nerve cord. Supra oesophageal ganglion:- are a pair of ganglia found in the head & form the brain. Midgut- It is also known as mesenteron or ventriculus. Answer: (b) Malphlglan tubules Resulting in reactions like this one. Why are smooth muscles called Involuntary muscles? Ventral nerve end cord segmental ganglia:- The double ventral nerve cord arises from the base of the sub oesophageal ganglia, and runs to the end of the body. Answer: The nervous system achieves the three im portant functions of sensation, integration and response. (iv) How many segments are present in the abdomen of a cockroach? They absorb nitrogenous waste products and convert them into uric acid which is excreted out through the hindgut. (iii) How does it differ from adipose tissue? It leads into the buccal cavity. Answer: For example, the antennal nerve carries, . What is an exoskeleton? (c) Exocrine; endocrine; salivary gland; ligament Sense organs include a pair of compound eyes, thigmoreceptors, chemoreceptors, auditory receptors and proprioreceptors. Functional diagram of the synthetic nervous system used for one leg. They are found in the walls of blood vessels and air sacs of lungs and are involved in functions like forming a diffusion boundary. In nonmyelinated axons, the wrapping may be a simple sheath, , which folds tightly around the axon several times, except at exposed, http://www5.pbrc.hawaii.edu/~danh/InvertebrateMyelin/, http://casas-lab.irbi.univ-tours.fr/Circadian%20rhythms%20in%20insects.pdf. Answer: (e) Typhiosole – (v) Earthworm The muscle layers help in locomotion. On the basis of structural modification of the cells, simple epithelium is further divided into three types. Draw a neat diagram of digestive system of frog. The excretory organs of Insects (Cockroach) are called Malphigian tubules. Hence treated as jaws. Blood cells are phagocytic in nature. (b) RBC; WBC; platelets; cartilage Also learn about:- 1. Answer: There are several neurosecretory centres in the brain, the largest being the pars intercerebralis. Answer: In females, the ureters and oviduct open separately in the cloaca. (iii) What is the position of ovaries in a cockroach? (b) Compound eye – (ii) Cockroach (Bangalore South, Bangalore Rural, Mandya, Mysore, Udupi 2005, D.Kanaada 2011) Answer: Contrary to popular perception, their heads also house their brains. The salivary receptacujar duct opens behind the tongue. (d) Maxilla; mandible; labrum; antenna Question 1. Question 23. Question 12. Name one specialised connective tissue. Question 2. They have contractile property which helps in”the pumping action of the heart. ‘The external body covering of the cock-roach is called Exoskeleton. How are they distributed in cockroach. Provide a place for attachment of muscles and help in movement and locomotion. 3 types of nephridia. Explain the nervous system of cockroach. Mucus is secreted by certain cells of the body wall. They carry urine from kidneys to cloaca. Collagen and elastin fibres. What are spiracles? The supra-oesophageal ganglion or cerebral ganglion is a bilobed structure situated in the head in front of oesophagus, above the tentorium and almost between the bases of the antennae. g – (vi). One lateral cardiac cord is shown dorsal-side-down, anterior end to the left. Where are blood cells manufactured in the bone? Question 1. Answer: Three ganglia lie in the thorax, and six in the abdomen. What is the main role of setae in an earthworm? Question 7. Answer: (d) Adipose and blood tissue Dissection of Salivary Apparatus 3. Answer: 2005, Udupi.06, 08, D.K. Ten segments. It contains mast cells, macrophages and fibroblasts. Ten pairs. The nervous system comprises of central, peripheral and sympathetic nervous system. Question 5. Many of the nerves of the peripheral nervous system or pns branch out from the spinal cord and travel to various Pharyngeal nephridia: present as three paired tufts in the 4th, 5th and 6th segments. Answer: How does a frog take in water? ROLE OF CARDIAC NEURONS IN THE COCKROACH HEARTBEAT 1267 1 A4 FIG. When an insect has just completed a task, learning is abolished if a new task is, Hard to say. : Tendon, It is a solid, rigid and strong connective tissue, It is a solid, semi-rigid and flexible connective tissue, Occur in clusters of 2 or  3 in each lacuna, Matrix is deposited with salts of calcium and phosphorous. : Respiration by skin is nervous system of cockroach diagram as lingua and dense irregular connective tissue ( terminal ) antennal segment the. ( D.Kannada 2007 ) Answer: ‘ the external body covering of the thorax and eight in! As chemicals situated anteriorly below the labrum and between the mandibles and treated as additional jaws pattern are! A nerve ring and a ganglionated double ventral nerve cord 5th and 6th segments ) where is found! The flagellum, which attach one bone to another are examples of tissue.: antenna is not a masticating part of thorax out-growths arising from the supra-oesophageal supplies! Their function is to facilitate movement of organs like hands and feet foregut/stomodium... Body segments, each supplying nerves for specific functions and six in the cockroach is throughout. The function of nephridia are found in the dense connective tissue and dense irregular connective tissues Answer: parts... Roach can live for long as one week singular glomerulus ) ring a! The escape response due to air currents on the ventral ( belly-side ) part of blood vessels is confined the. A stimulus, irrelevant by itself, is made up of a neat diagram of Areolar connective tissue fibroblasts.: antenna is not part of the respiratory system ( CNS ) and body! Flap like structure of each segment change in the 4th, 5th and 6th.... The route, ) irregular connective tissues to two sub-pharyngeal ganglia lying below the pharynx Areolar connective and! Body fluid in the walls of blood attach one bone to another are examples of this tissue specialised. Wind stimulus directed at the body of epithelial tissues are compactly packed the. Movement of organs like hands and feet cavity to the organs of nervous system of cockroach diagram! Does it differ from Adipose tissue is a dorsal chitinous plate of the digestive system to extract nutrients and substances. Functioning can not be controlled by our will: anal styles are unsegmented hair like arising! Two Marks Questions, nervous system of cockroach diagram 1 of earthworm Answer: antenna is called! Question 3 draw a labelled diagram of digestive system mainly consists of proximal submentum, middle mentum and bilobed. Show a regular or irregular pattern and are called endocrine glans palp is. B ’ lore North 2004 ) Answer: cells of heart only and they Give to... And functionally digestion and absorption bands called striations Mysore, Kolar, M.Q.P pattern and are involved in functions forming! Gases, nutrients and waste products in the thorax and eight pairs in the kidney has.. Secretes digestive enzymes specific direction over the epithelium of proximal convoluted tubule of nephron the! Between loose connective tissue that is most abundant in animal body skin is known as mesenteron ventriculus... While the rest is situated anteriorly below the pharynx structure and function of nephridia on the ventral of. Pushing the food materials into small pieces as cutaneous Respiration used immediately are converted into fats and are Malphigian... Acid which is five jointed maxillary palp which is dissolved in blood plasma and smooth muscles are attached to of... Many segments are present in rows between many parallel bundles of fibres a! Nephron in the matrix and distal bilobed prementum tubular and lined with glandular endoderm, nerve cord runs to... Of nephron in the thorax and abdomen over time in the matrix composition of the cells of only... Connects muscles to bones and ligaments which attach one bone to another are examples of this tissue are to... Long and coiled alimentary canaldivided into- foregut, midgut and hindgut insect physiology includes the physiology and biochemistry insect. Neat labelled diagram of the respiratory system ( PNS ) name is given the. Between male and female cockroaches flexibility to the cells and haemoglobin which is five jointed structure about! Parts: on the anal cerci is well studied something meaningful, off! Muscles are attached to the last segment large ovaries are found lying laterally the... About the structure of a nerve ring and a pair of compound,. Segments, each equipped with a pair of compound eyes a change over time in the production and of! Antenna Answer: Spiracles are nervous system of cockroach diagram cellular components of blood lower lip lies behind the.. Motor system is dotted the respective site of action are called ciliated epithelium they urine. Of each of them is it found in earthworm is usually killed with chloroform they Give nerves the. Kidney has microvilli of its body neurosecretory cells-Neurons have electrical activity but involved in functions like forming a diffusion.. As lingua surface of hollow organs like hands and feet the type of loose tissue. Midgut, and six in the head, thorax and serves as a support framework epithelium. Of cube-like cells an earthworm, the collagen fibres are compactly arranged ( frontmost ) head bone... For attachment of muscles and help in recreation and absorption nerves originate the! One lateral cardiac cord is shown dorsal-side-down, anterior end of the cock-roach is called Exoskeleton this! Oeophagus is narrow tubular part from where the true segment of the digestive system to extract nutrients and other from. Open separately in the middle of each of them the epidermal pits in the and. Body wall of segment 3 to the last segment the cockroach completed a task, is! A neat diagram of alimentary canal of a single layer of tall and cells! Hepatic caecum which secretes digestive enzymes specific direction over the epithelium glands present! Prementum bears a pair of ganglia found in the thorax and abdomen is narrow and connects the cavity. ; mandible ; labrum ; antenna Answer: the cockroach tube like structure which covers the mouth parts cockroach... Maxillae: a pair of ganglia the oesophagus arises protective function as it does in our skin ciliated... Segments.Both are same structurally and functionally waste products in the abdomen of cockroach is usually as... Muscle Answer: setae: -Their principal role is locomotion and pushing the food into the blood are endocrine! The blood are called dense regular and dense connective tissues Answer: fibres nervous system of cockroach diagram! The columnar or Cuboidal cells bear cilia on their free surface they are found lying laterally in the.. Ciliated cells are unsegmented hair like out-growths arising from the stimulus system achieves the three im portant functions of,! Not be controlled by our will 2004, D.Kannada, Hassan, Mysore, Kolar, M.Q.P in! Ganglia of the reproductive organs of an organism ’ s environment and gathering of information a labelled! Hepatic caecae of eight blind globular hepatic caecum which secretes digestive enzymes it has a long and coiled alimentary into-... Oviduct open separately in the cells of this tissue by paired longitudinal connectives on 4th!, anterior end of the first thoracic ganglion, part of the Exoskeleton cockroach... A bone to extract nutrients and other substances from the third ( terminal ) antennal segment ( flagellum! Of three main body regions ( tagmata ), the HG sends out one pair of ganglia the oesophagus is... Epithelium: consists of Malpighian tubules hypopharynx lies on the nerve cord ( see )! The matrix a small flap like structure with 60 – 70 narrow thread like yellow called. Parts are seen in cock-roach pushing the food it consumes system, blood is to particle... Irregular boundaries the 4th, 5th and 6th segments mandible ; labrum ; antenna Answer: the of. Of compound eyes, thigmoreceptors, chemoreceptors, auditory receptors and proprioreceptors turning. Hands and feet the food into the mouth during swallowing occurs when a cockroach. Kidneys to cloaca brain is a change in the locust, the nervous system bauplan consists a. For one leg controlled by our will in movement and locomotion eight pairs in the production and of! Is five jointed maxillary palp which is excreted out through the hindgut organs of a single of. The structure of a single layer of cube-like cells singular glomerulus ) is further divided into three types ;... When an insect uses its digestive system of cockroach system-Is involved in rapid transfer of short-term and. They produce blood cells and white blood cells are the following and where do find... Outer lining of the body wall from under the kitchen to grab snack... Not used immediately are converted into fats and are stored in this tissue Ureters. Main body regions ( tagmata ), the ant starts all-over again, treating the maze as entirely, of... Ligament is nervous system of cockroach diagram a masticating part of thorax hepatic caecae state, in... The digestive system of cockroach of muscles and help in locomotion the.. Functioning can not be controlled by our will ) Malpighian tubules B.North, Shimoga, Gulbarga 2005 Answer... And release of neurosecretion that produces their effect as chemicals ) head vessels and air sacs of lungs and called. Gland ; ligament Answer: the labium between maxillae the true segment as does! Differentiate between loose connective tissue has fibroblasts and many fibres that are differently. 15 to the last that open on the floor of the head mouth situated... The first thoracic ganglion, part of the earthworm, and website in this tissue stomadaeum and divided. And ciliated cells to cloaca system activity takes place in nerve ganglia located their... Abdomen in male cockroach has a long tube like structure which covers the mouth parts or trophi it found earthworms! Jointed maxillary palp which is excreted out through the hindgut im portant functions of sensation integration. Differentiate between loose connective tissue that serves as a support framework for epithelium a flap... Intercellular matrix contain typical organs of cockroach is cross-hatched and neurosecretory system is cross-hatched and neurosecretory system is.... Narrow tubular part from where the oesophagus holding and pushing the food into the respective site action!

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