Question

The thinnest blood vessels in the human body are
(a) arteries
(b) veins
(c) capillaries
(d) any of these

Answer 1

Answer:

capillaries are the thinnest blood vessels

Answer 2

The thinnest blood vessels in the human body are the capillaries.

Explanation:

The correct answer is option d, capillaries.

They are responsible for the actual water and chemical exchange between tissues and blood.

They are the thinnest and smallest blood vessel in the human body. Capillaries also inter connect venules and arterioles.

Red blood cells crush through the capillaries.