A&P of Periphal Vascular Sys.

Question 1

Describe arteries.

Answer 1

Arteries are tougher, more tensile, and less distensible.

Question 2

Describe veins.

Answer 2

Veins are less sturdy and more passive.
Contain valves to keep blood flowing in one direction
If blood volume increases significantly, the veins can expand and act as a repository for extra blood.

Question 3

What are the variables that contribute to the characteristics of a pulse?

Answer 3

Volume of blood ejected (stroke volume)
Distensibility of the aorta and large arteries
Viscosity of the blood
Peripheral arteriolar resistance