Cockroach Respiratory System Short Notes

In this article we will discuss about the cockroach respiratory system

Cockroach Respiratory System

• Respiratory system carry oxygen from the air to all the parts
• The respiratory system of cockroach consists of network of trachea
• That open through 10 pairs of small holes called spiracles
• 2-pair on thorax and 8 pairs on abdomen region
• Branches of trachea is called Tracheal Capillaries or tracheoles
• Gas exchange takes place at the tracheoles by diffusion

How Respiratory System Works In Cockroach?

• Muscles extend between the tergites and sternites of all abdominal segments
• When the abdomen expands, atmospheric air gets filled in the tracheal system through spiracles. This is inspiration.
• When the abdomen contracts, the air is forced out. This is expiration.
• The cuticle of cockroach is highly permeable to CO2, but not to O2
• Most of the CO2 diffuse out from body wall some of CO2 out through spiracles.