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Tergosternal muscles help in...

Tergosternal muscles help in

A

(a) circulation

B

(b) respiration

C

(c) flight

D

(d) all of these

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Identify the Muscles**: The question refers to "tergosternal muscles," which are specific to cockroaches. 2. **Location of Muscles**: These muscles are located in the abdomen of cockroaches, which consists of 10 tergal segments (dorsal side) and 9 sternal segments (ventral side). 3. **Function of Tergosternal Muscles**: The primary function of the tergosternal muscles is to facilitate respiration. They achieve this by contracting and relaxing, which changes the volume of the respiratory cavity in cockroaches. 4. **Gaseous Exchange**: The contraction and relaxation of these muscles allow for the movement of air in and out of the respiratory system, enabling gaseous exchange. 5. **Evaluate Options**: - Option A (circulation) is incorrect as circulation is managed by other muscles (alaric muscles). - Option B (respiration) is correct as discussed. - Option C (flight) is partially correct but not the primary function of tergosternal muscles. 6. **Conclusion**: The correct answer is that tergosternal muscles help in respiration.
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