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Fishes have venous heart. The heart rece...

Fishes have venous heart. The heart receives deoxygenated from all over the body except

A

Fins

B

pectoral fins

C

Gills

D

pelvic fins

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, "Fishes have venous heart. The heart receives deoxygenated blood from all over the body except," we will analyze the options provided and determine which one does not contribute deoxygenated blood to the fish's heart. ### Step-by-Step Solution: 1. **Understand the Function of the Fish Heart**: - Fishes have a venous heart, which means it primarily receives deoxygenated blood from the body. This blood is then sent to the gills for oxygenation. 2. **Analyze the Options**: - **Option 1: Fins** - Fins are used for swimming and do not play a role in blood circulation. Therefore, they do not contribute deoxygenated blood to the heart. - **Option 2: Pectoral Fins** - Similar to fins, pectoral fins are used for gliding and maneuvering in water. They do not provide deoxygenated blood to the heart. - **Option 3: Gills** - Gills are responsible for oxygenating deoxygenated blood. Blood that reaches the gills is deoxygenated, but it is not sent to the heart; instead, it is oxygenated in the gills. - **Option 4: Pelvic Fins** - Pelvic fins also help with balance and movement in water. They do not contribute deoxygenated blood to the heart. 3. **Determine the Correct Answer**: - The question asks for the source of blood that does not contribute deoxygenated blood to the heart. Since gills oxygenate the blood and do not send deoxygenated blood to the heart, the correct answer is **Gills**. ### Final Answer: The heart of fishes receives deoxygenated blood from all over the body except **Gills**. ---
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