THORAX ABDOMEN AND PELVIS

MEDICAL

ARTERIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
I have a large lumen, I have thin muscular walls.
A
Artery
B
Vein
C
Capillary
D
Arteriole
Explanation: 

Detailed explanation-1: -Veins carry unoxygenated blood towards the heart, away from tissues at low pressure so the lumen is large. Blood moves more slower and often against gravity so valves and a larger lumen ensure it is still transported efficiently.

Detailed explanation-2: -Arteries are more muscular and have smaller, rounder lumens (internal spaces) than veins. The artery lumen has a wavy endothelium, or inner lining, due to the configuration of elastic tissue beneath it.

There is 1 question to complete.