SCIENCE
CIRCULATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Artery, vein and capillary
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Have endothelium, a layer of flattenedepithelial cells, has a smooth surface
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tite
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Arteries are thick-walled, and linedwith smoothmuscle
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Detailed explanation-1: -The blood vessel wall has three layers: intima, media and adventitia. The intima consists of endothelium and subendothelial connective tissue and is separated from the media by the elastic lamina interna. Endothelial cells form a continuous monolayer lining all blood vessels.
Detailed explanation-2: -The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells.
Detailed explanation-3: -The endothelium is a single layer of squamous endothelial cells that line the interior surface of blood vessels and lymphatic vessels.
Detailed explanation-4: -Tunica intima: The inner layer surrounds the blood as it flows through your body. Media: The middle layer contains elastic fibers that keep your blood flowing in one direction. Adventitia: The outer layer contains nerves and tiny vessels. 07-Sept-2021