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An artery is a vessel that transports blood away from the heart, characterized by a thick elastic wall and pulsating motion due to the heart's pumping. A vein is a vessel that directs blood back to the heart, featuring a broader lumen and internal valves, allowing for smooth and slow blood flow.

1. An artery is a vessel that transports blood away from the heart, characterized by a thick elastic wall and pulsating motion due to the heart's pumping. A vein is a vessel that directs blood back to the heart, featuring a broader lumen and internal valves, allowing for smooth and slow blood flow.
2. The 'Bundle of His' consists of specialized cardiac muscle fibers that link the atria to the ventricles.
3. Arteries are blood vessels that divide into capillaries, which then rejoin to form a single visceral organ.
4. Blood pressure at 190/110 mmHg can damage critical organs like the brain and kidneys, a condition known as hypertension, which may lead to a rapid heartbeat and palpitations.

Correct answer: An artery is a vessel that transports blood away from the heart, characterized by a thick elastic wall and pulsating motion due to the heart's pumping. A vein is a vessel that directs blood back to the heart, featuring a broader lumen and internal valves, allowing for smooth and slow blood flow.

Solution

The correct choice is the one that accurately defines arteries and veins. Arteries carry blood away from the heart with thick, elastic walls, while veins return blood to the heart and typically have wider lumens and valves to prevent backflow.

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