Give the name of the blood vessel which arises from first chamber of the heart in a cockroach :
A
Nephrocyte
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B
Fenestrae
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C
Ostia
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D
Anterior aorta
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Solution
The correct option is D Anterior aorta The circulatory system of the cockroach is placed in the pericardial sinus. It consists of a tubular heart, which is 13-chambered. A blood vessel called the anterior aorta arises from the first chamber of the heart.