Chp 20

Question 1

Arteries

Answer 1

Blood vessel that Carrie’s blood away from heart #thicker walls compared to Capillaries and veins

Question 2

Capillaries

Answer 2

smallest blood vessels #most exchange between the blood and the tissue fluid occurs across capillary walls.

Question 3

Inner most layer of a blood vessel wall

Answer 3

Tunica Interna

Question 4

Endothelium is made of

Answer 4

Simple squamous epithelial tissue cells

Question 5

Vein

Answer 5

Thickest Wall

Question 6

Functions of Endothelium

Answer 6

Acts as selectively permeable barrier to materials entering or leaving the bloodstream #Secretes chemicals that stimulate dilation or constriction of the vessel #Repels RBCs and platelets to retain flow

Question 7

Conducting Arteries/elastic arteries

Answer 7

Largest of 3 types # Expand during ventricular systole #alternative name(

Question 8

Tunica Media

Answer 8

usually the thickest layer of artery wall #The layer of vein wall containing smooth muscle.

Question 9

Distributing Arteries

Answer 9

medium sized, muscular arteries

Question 10

Resistance Arteries

Answer 10

Small arteries that aren’t given individual names.

Question 11

Arteriosclerosis

Answer 11

The stiffening of arteries with continuation of aging. This increases risk of aneurysms