True or False? The smallest branches of arteries are called venules.

PULMONARY PHYSIOLOGY

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	False
B	True
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -After blood passes through the capillaries, it enters the smallest veins, called venules. From the venules, it flows into progressively larger and larger veins until it reaches the heart.

Detailed explanation-2: -A venule is a small blood vessel in the microcirculation that allows deoxygenated blood to return from capillary beds to larger blood vessels called veins. Venules range from 8 to 100m in diameter and are formed when capillaries come together.

Detailed explanation-3: -They provide a connection between arteries and capillaries, acting as a “middle man” when the larger arteries and tiny capillaries want to trade oxygen, nutrients and waste. Venules (small veins) taking blood back to your heart join capillaries to take part in these exchanges.

There is 1 question to complete.