Answer:

Cockroach: An Important Organism for NEET Exam

Cockroaches are an important organism that is often used in NEET exams for the study of various systems including the circulatory system. The circulatory system of cockroaches is quite different from that of humans and other mammals.

Circulatory System of Cockroaches: Video Explanation

The circulatory system of cockroaches consists of an open circulatory system. In this system, the blood is not enclosed in vessels, but it flows freely throughout the body cavity. This system is also known as a hemocoel. The blood of cockroaches is called hemolymph, which is a combination of blood and lymphatic fluid.

Cockroach- Circulatory System: Video Explanation

The video explains the circulatory system of the cockroach in detail. It shows how the hemolymph flows through the body cavity and how it is pumped by the heart. The heart of the cockroach is a long tube that runs the entire length of the body. It has several openings that allow the hemolymph to enter and leave. The video also shows the various organs and tissues that are supplied by the hemolymph.

Conclusion:

Cockroaches are an important organism for the study of various systems including the circulatory system. The circulatory system of cockroaches is quite different from that of humans and other mammals. The video explains the circulatory system of the cockroach in detail, showing how the hemolymph flows through the body cavity and how it is pumped by the heart.