Question

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identify the indicated heart vessel
a pulmonary artery
b pulmonary trunk
c sinoatrial node
d aorta

Explanation:

The aorta is the main and largest artery in the body. It originates from the left ventricle of the heart and distributes oxygenated blood to all parts of the body through the systemic circulation. The pulmonary artery and trunk carry de - oxygenated blood to the lungs. The sinoatrial node is a group of cells (pacemaker) that initiates the electrical impulses for the heartbeat and is not a blood vessel.

Answer:

D. aorta