1.

(a) Draw a sectional view of the human heartand label on it, pulmonary artery, Right auricle, vena cava, pulmonary vein (b) Explain why ventricles have thick muscular walls than the atria. ?

Answer»

Solution :(B) Ventricles have THICKER MUSCULAR walls than atria, as the ventricles have to PUMP the blood to arteries which carry it to the longer DISTANCE


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