SS2. Cardio vascular system - Blood vessels

Question 1

What layers does the bloodvessel consist of?

Answer 1

Tunica intima
Tunica Media
Tunica externa/adventia

Question 2

What is the tunica intima?

Answer 2

Basement membrane and endothelial cells together

Question 3

What is the tunica media?

Answer 3

Layer of smooth muscle cells

Question 4

What is the Tunica externa/adventia?

Answer 4

A layer of proteins with a lot of collagen. The vasa fvasorum (blood vessels on blood vessels) and nerve ending can be found.

Question 5

How are large/middle artereis build up?

Answer 5

Has same tunica intima as a vessel.
Large unica media layer with elastin to make them withstand pressure.
Tunica externa

Question 6

How are arterioles build up?

Answer 6

Small tunica intima, large tunica media with a lot of muscle to create resistance.
Tunica externa.

Question 7

How are capillaries build up?

Answer 7

Unique.

Has a lumen, but only has 1 cell around them instead of layers.

Question 8

What pressure and volume do arteries have?

Answer 8

High pressure, low volume (~15%)

Question 9

What pressure and volume do veins have?

Answer 9

Low pressure, high volume (~65%)