Q. 15.0( 3 Votes )
Fill in the blank
(i) Ventricles have thick walls when compared with those of auricles.
Explanation: The ventricles have thick muscular walls because they have to pump blood too long distances.
(ii) Ventricles give rise to two large blood vessels called pulmonary artery and aorta.
Explanation: Ventricles give rise to two large blood vessels called pulmonary artery and aorta. Pulmonary artery, carrying deoxygenated blood, arises from the right ventricle and aorta arises from the left ventricle and carries oxygenated blood.
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