The middle layer of the wall of an artery or vein,allowing it to withstand and modify blood pressure, is
A) connective tissue.
B) skeletal muscle.
C) smooth muscle.
D) endothelium.
E) simple squamous epithelial cells.

Question

The middle layer of the wall of an artery or vein,allowing it to withstand and modify blood pressure, is
A) connective tissue.
B) skeletal muscle.
C) smooth muscle.
D) endothelium.
E) simple squamous epithelial cells.

Quizplus · Accepted Answer

Smooth muscle contracting or relaxing causes the blood vessel to dilate or constrict, altering blood pressure.

The Middle Layer of the Wall of an Artery or Vein,allowing