EVERYDAY SCIENCE

Detailed explanation-1: -A venous heart is the type of heart in which only blood with CO₂ circulates. Venous hearts receive blood from veins and pumps it for oxygenation. This type of heart is generally found in fishes.

Detailed explanation-2: -Venous hearts get blood from veins and pumps it for oxygenation. It is responsible for delivering nutrition, oxygen, hormones, and other essentials to all regions of the body and removing metabolic waste. The venous heart is majorly popular in fishes.

Detailed explanation-3: -In fishes, the deoxygenated blood which is pumped by the heart is received by the veins of the heart. This blood is then sent by the veins to the gills of the fish for the blood’s oxygenation. Therefore, the hearts of the fishes are also considered to be a venous heart.

Detailed explanation-4: -A fish’s heart is called a ‘venous heart’ because the heart receives blood from veins and sends it to the gills for oxygenation. The heart is two-chambered and performs single circulation where it receives and pumps only deoxygenated blood. There are veins as well as arteries in the fish.

Detailed explanation-5: -As it pumps only the deoxygenated blood, it’s known as venous heart. This type of heart is found in fish.