CVS - Structure & Types of Blood Vessels

Question 1

what do BVs consist of? define each term’s function.

Answer 1

arteries: efferent vessels carrying blood from heart
veins: afferent vessels carrying blood to heart
capillaries: connects arteries & veins

Question 2

what is the flow between BVs and heart?

Answer 2

heart > arteries > arterioles > capillaries > venules > veins > heart

Question 3

name the layers of BV structure

Answer 3

tunica interna (intima)
tunica media
tunica externa

Question 4

define the layers of BV structure

Answer 4

tunica interna

• innermost layer
• contains endothelial cells, simple squamous

tunica media

• middle layer
• contains layer of smooth muscle, alters diameter of vessels

tunica externa

• outermost layer
• forms CT sheath around vessel

Question 5

name the types of arteries

Answer 5

elastic, muscular, arterioles