Tubular heart of cockroach has how many chambers?

Question

Tubular heart of cockroach has how many chambers? (A) 10 (B) 13 (C) 12 (D) 11

Tardigrade Admin · Accepted Answer

Circulatory system of cockroach is open or lacunar type. Tubular heart of cockroach is situated in pericardial sinus over the dorsal diaphragm. It is longitudinally beaded with 13 chambers perforated by ostia having valves.

Q. Tubular heart of cockroach has how many chambers?

10

13

12

11

Circulatory system of cockroach is open or lacunar type. Tubular heart of cockroach is situated in pericardial sinus over the dorsal diaphragm. It is longitudinally beaded with $13$ chambers perforated by ostia having valves.