Question

What is the structure and function of the heart of a fish?

Answer 1

Structure of fish heart:

1. The circulatory system of fish is closed, with blood traveling throughout the body inside blood vessels.
2. From the tissues through the heart to the gills and back to the tissues, the blood circulates continuously in a loop.
3. The atrium and ventricle, the two chambers that make up the fish heart, each have thick, musculoskeletal walls.
4. Fish hearts only have one pump, which is made up of two chambers called the atrium and ventricle.

Functions of fish heart:

1. The circulatory system of fishes is known as single cycle circulation because it only has one circuit, in which the blood is pumped via the gill capillaries and onto the body tissues' capillaries.
2. Sinus venosus is a sac-like compartment where the blood that is circulating in the veins from bodily tissues to the heart first enters before traveling to the atrium.
3. A part of the heart called the bulbous arteriosus, is formed like a tube and links the heart to the aorta, receives the collected blood from the atrium, and pumps it into the ventricle.
4. The aorta may be thought of as a big artery that carries blood from the heart to the gills, where it is oxygenated and then circulates through blood arteries to the organism's tissues.