With the help of neat labelled diagram, explain cir-culatory system in cockroach.
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Heart and Aorta:
The heart of cockroach is an elongated contractile, narrow tube lying along the mid-dorsal line of thorax and abdomen just beneath the terga. The heart is enclosed in a pericardial sinus, the wall of which has segmented bundles of alary muscles and a dorsal fenestrated diaphragm.
The wall of the heart is composed of outer connective tissue and median muscle cells. The cavity of the heart is lined by the sarcolemma of median muscle cells. The heart consists of thirteen funnel-shaped and segmentally arranged chambers, each communicating by a valvular opening with that lying in front of it
I only know this much ...
The heart of cockroach is an elongated contractile, narrow tube lying along the mid-dorsal line of thorax and abdomen just beneath the terga. The heart is enclosed in a pericardial sinus, the wall of which has segmented bundles of alary muscles and a dorsal fenestrated diaphragm.
The wall of the heart is composed of outer connective tissue and median muscle cells. The cavity of the heart is lined by the sarcolemma of median muscle cells. The heart consists of thirteen funnel-shaped and segmentally arranged chambers, each communicating by a valvular opening with that lying in front of it
I only know this much ...
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