(1) Select the correct statement.
(I) Pulmonary artery carries oxygen-rich blood to the heart
(ii) Pulmonary vein carries oxygen-rich blood to the the lungs
(iii) Aorta brings oxygenated blood from lungs to the heart
(iv) Vena cava brings deoxygenated blood to the heart.
(2). Select the wrong statement *
(I) Rhythmic contraction followed by relaxation constitute a heartbeat.
(ii) Partition between the chambers of heart prevent the mixing of oxygenated and deoxygenated blood.
(iii)Microscope is a device used to amplify the sound of the heart.
(iv) The lower two chambers of the heart are called ventricles.
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