Why Piscian heart is called a venous heart? - Vidyadip

Question

Why Piscian heart is called a venous heart?

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Answer

a. Pisces have two-chambered heart. They have single and closed circulation.
b. Heart of Pisces receives blood only from veins and thus always shows presence of deoxygenated blood which it pumps directly to the gills for oxygenation.
Thus, the heart of Pisces is called a venous heart.

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