MCQ
The given figure shows open circulatory system of cockroach. Identify the structure that facilitate the flow of haemolymph by its contraction and relaxation
- A$A$
- ✓$B$
- C$C$
- DAll of these
✓
Answer
Correct option: B.
$B$
b
Alary muscles (structure marked as $B$ ) are located in pairs in the chambers of cockroach heart. They are $13$ pairs of wing shaped involuntary muscles which expand and contract to facilitate the flow of haemolymph through the heart.
Alary muscles (structure marked as $B$ ) are located in pairs in the chambers of cockroach heart. They are $13$ pairs of wing shaped involuntary muscles which expand and contract to facilitate the flow of haemolymph through the heart.
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