Hyderabad
08048036175
+919848399491
General Lab Supplies by MNC CHEMICALS SURGICALS

Cockroach Respiratory System

INR 588
In stockcod available
Phone Number

08048036175

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Email Address mnc.naveen@gmail.com

Mon-Thu: 10 AM - 2 PM • Fri: 3 PM - 7AM

Address Correspondence Address: Shop No. 20, 2nd Floor, Srirama Tower, Bogulkunta, Telangana

Hyderabad, India, 500001

Description

The cockroach respiratory system is an internal network of air tubes called tracheae, which directly transport oxygen to body tissues and remove carbon dioxide without involvement of blood.​ Structure and Main Components Spiracles (Stigmata): Ten pairs of small, valved openings on the body’s sides—two pairs on the thorax and eight on the abdomen—serve as entry and exit points for air. These are controlled by muscular sphincters and surrounded by chitinous rings (peritremes), sometimes with filtering hairs (trichomes).​ Tracheae: Large, chitin-lined tubes branching internally from each spiracle, arranged as six longitudinal trunks (two dorsal, two lateral, two ventral) interconnected by smaller commissures. The tracheae remain flexible and resist collapse due to spiral thickenings.​ Tracheoles: Finer tubes branching extensively throughout the body, penetrating tissues and even individual cells, enabling rapid gas exchange by diffusion.​​ Air Sacs: Thin-walled, expandable reservoirs that store air and help maintain a continuous oxygen supply during periods of high activity.​ Mechanism of Respiration Inspiration: Thoracic and abdominal muscles relax, spiracles open, and air is drawn in through thoracic spiracles, traveling to tracheae and tracheoles, where oxygen diffuses into cells.​ Expiration: Muscular contraction of the body expels carbon dioxide-loaded air through abdominal spiracles.​ Rhythmic expansion and contraction of the abdomen (abdominal pumping) ensures active ventilation in addition to passive diffusion—especially during activity or stress.​ Adaptations and Function The tracheal system ensures all tissues receive direct oxygen access, compensating for the poorly developed circulatory system and lack of respiratory pigments in cockroach blood.​ Gas exchange is efficient, supporting both high activity and the cockroach’s survival in low-oxygen or sealed environments.​​ Educational models typically show spiracle placement, major tracheal trunks, branching tracheoles, and how gas exchange bypasses blood circulation—an efficient system characteristic of terrestrial insects.​ Related Show a clear labeled diagram of cockroach tracheal system Explain the role and location of spiracles in cockroaches Compare cockroach respiration with earthworm respiration Describe mechanism of ventilation during cockroach activity How do tracheoles enable gas exchange at cellular level

Model No. N-EM095

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