Question

Which blood vessels have the smallest diameter?

A. Capillaries

B. Arterioles

C. Venules

D. Lymphatic

Answer 1

HEYAMATE!!

Answer...

Which blood vessels have the smallest diameter?

☑️A. Capillaries

B. Arterioles

C. Venules

D. Lymphatic

Capillaries have the smallest diameter among all the blood vessels.

They are formed by the fine branching of blood vessels like arteries and venules.

Its diameter generally ranges from 5-10 micrometers.

They are only one celled thick .

They transport oxygen and nutrients to tissues and collect carbon dioxide and waste products for them .

The minute size of capillaries is helpful since the larger sized arteries and venules can't exchange material from between the tissues .

Answer 2

A. Capillaries have the smallest diameter.

Blood Capillaries:

• Your body has tiny blood veins called capillaries, which are found everywhere.
• They deliver blood, nutrients, and oxygen to the cells that make up your body's organs and systems.
• The arteries that take blood away from the heart and the veins that bring blood back to the heart are connected by capillaries, the tiniest and most abundant blood vessels (veins).
• Materials are exchanged between blood and tissue cells via capillaries, which serve this purpose primarily.
• Your vascular system contains capillaries, which are the tiniest blood vessels.

Arterioles:

• The capillary bed is formed by the division of the arterioles, the smallest branch of the artery, into even smaller capillaries.
• Large elastic arteries that pump blood from the ventricles repeatedly divide into smaller and smaller arteries, eventually leading to tiny arteries known as arterioles.
• The control of blood flow into the tissue capillaries is largely dependent on the arterioles.

Venules:

• In microcirculation, a venule is a very tiny blood vessel that enables blood to return from the capillary beds and discharge into the veins.
• Venules have diameters ranging from 7 μm to 1 mm.
• About 70% of the blood's total volume is found in veins, 25% of which is found in venules.

Lymphatic vessels:

• The network of capillaries (microvessels) and a sizable network of tubes known as lymphatic vessels are found all over your body and are responsible for carrying lymph away from tissues.
• As lymph moves toward bigger vessels known as collecting ducts, lymphatic vessels continue to collect and filter lymph (at the nodes).

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