Question

State two characteristics of the heart of cockroach .​

Answer 1

The heart of the cockroach is elongated, thick, muscular, tubular and 13-chambered. It lies in the pericardial sinus of the hemocoel. Each chamber of the heart receives oxygenated blood from the dorsal sinus through one pair of slit-like openings called ostia. The heart contracts in a posteroanterior direction and the blood also flows posteroanterior. The alary muscles are responsible for the circulation of blood.

Answer 2

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♣︎The cockroach is an arthropod.

♣︎Heart of cockroach is neurogenic which requires nervous impulse to contract.

♣︎A cluster of neurons is present on the wall of the heart that produces the rhythmic motor output for the heartbeat.

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