PHYSIOLOGY
PULMONARY PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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None of the above
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Detailed explanation-1: -Arterioles are 100 m (micrometers or microns) to 7 m (or . 30 to . 01 millimeters) in diameter.
Detailed explanation-2: -Arteries transport blood away from the heart and branch into smaller vessels, forming arterioles. Arterioles distribute blood to capillary beds, the sites of exchange with the body tissues. Capillaries lead back to small vessels known as venules that flow into the larger veins and eventually back to the heart.
Detailed explanation-3: -Venules. Venules in the upper and mid dermis usually run in a horizontal orientation. The diameter of the postcapillary venule ranges from 12 mm to 35 mm. Collecting venules range from 40 mm to 60 mm in the upper and mid dermis and enlarge to become 100 to 400 mm in diameter in the deeper tissues.