Integumentary System 5. Excretory System 12. The principle excretory organs of cockroach consists of malpighian tubules. Antennal glands or green glands perform the excretory function in crustaceans like prawns. Locomotion 8. Introduction to Periplaneta 2. Cockroach excretes uric acid, so it is uricotelic. Structure 4. Excretion may be thought of as those processes which remove substances from the metabolic pool for the negative reason that they interfere with ordered metabolism. Respiration in Cockroach. Endocrine System 14. Alimentary system of cockroach The alimentary canal is a long tube (Holotrophic) extending from mouth to anus. Body Cavity 7. When the air enters the respiratory system of a cockroach through these outside openings, spiracles act as muscular valves, leading to the inside respiratory system. The cells in the tubules are called flame cells (or protonephridia ) because they have a cluster of cilia that looks like a flickering flame when viewed under the microscope, as illustrated in Figure \(\PageIndex{2}\)a. Most insects muscle have a thin layer of striated muscle around this membrane, muscle cells are spirals around the distal end of the tubule and proximal tubule empty contents of the tubule into the gut. This document is highly rated by NEET students and has been viewed 768 times. In cockroach, respiration takes place through a small opening on the sides of its body called spiracles. Their excretory system consists of two tubules connected to a highly branched duct system. It is mainly divided into three regions viz., foregut or stomodaeum, midgut or mesenteron or ventriculus and hindgut or proctodaeum. Reproductive System Nervous System 13. Circulatory System 11. The Malpighian tubules are the main excretory organs of cockroach which help in eliminating the nitrogenous wastes from the body in the form of uric acid. Excretory system . It is convoluted in the posterior end. SCOPE OF SYLLABUS: Morphology and anatomy of different systems of cockroach. The nervous system comprises of central, peripheral and sympathetic nervous system. -Is the process in which an organism eliminates metabolic wastes and not The efficiency of the excretory system of the American cockroach was measured using a dye clearance test. Cockroaches, like all insects, breathe through a system of tubes called 19.1 H UMAN EXCRETORY SYSTEM In humans, the excretory system consists In fishes some excretion also takes place in the digestive tract, skin, and especially the gills (where ammonia is given off). Fish - Fish - Excretory organs: The primary excretory organ in fishes, as in other vertebrates, is the kidney. In addition, fat body, nephrocytes, cuticle, and urecose glands are also excretory … Muscular System 6. Malpighian tubules help in the removal of nitrogenous wastes and osmoregulation. ADVERTISEMENTS: The below mentioned article provides an overview on Periplaneta (Cockroach):- 1. Sense organs include a pair of compound eyes, thigmoreceptors, chemoreceptors, auditory receptors and proprioreceptors. Mouth leads Sep 25, 2020 - Cockroach: Digestive and Excretory System NEET Notes | EduRev is made by best teachers of NEET. Digestive System 9. tubules are the excretory structures of most of the insects including cockroaches. Habit and Habitat of Periplaneta 3. Elementary knowledge of the digestive, respiratory, circulatory, excretory, nervous and reproductive system. Respiratory System 10. 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