Question

_________________receives oxygenated blood from the lungs.
(a) Right auricle
(b) Right ventricle
(c) Left auricle
(d) Left ventricle

Answer 1

The auricles are also known as an atrium and in the case of the auricle, one auricle carries oxygenated blood from the lung whereas the other auricle carries deoxygenated blood from different body parts to the right ventricle which then passes to the lung.

Complete Answer:
The left auricle receives oxygenated blood from the lungs and it shows by the systemic circulation of the heart because systemic circulation carries oxygenated blood.
The organism which carries a four-chambered heart show double circulation. Double circulation is divided into systemic and pulmonary circulation. In systemic circulation the oxygenated blood flows from the left ventricle to all body parts and the deoxygenated blood flows to the right atrium from all parts of the body. It starts from the left ventricle and then passes to the aorta and then to arteries and their branches, after this the blood passes down to capillaries, venules and vein from the arterioles and finally to the right atrium through the vena cava. Systemic circulation helps in the passage of oxygen to the body with the removal of carbon dioxide.
In pulmonary circulation, the deoxygenated blood flows from the right ventricle to the lung and then the left atrium carries oxygenated blood from the lung. The right ventricle gets divided into the right and left pulmonary artery which carries deoxygenated blood to the lung and the pulmonary vein carries oxygenated blood to the left atrium.

So, the correct answer is 'Left Auricle'.

Note:
Systemic circulation is also known as greater or peripheral circulation because it supplies the blood to most of the tissue of the body.
The systemic heart-like left side always carries oxygenated blood whereas the right side of the heart carries the deoxygenated blood which is the pulmonary heart.