Chapter 14 Anatomy of Cardiovascular System Flashcards Preview

Anatomy and Physiology II Lab > Chapter 14 Anatomy of Cardiovascular System > Flashcards

Flashcards in Chapter 14 Anatomy of Cardiovascular System Deck (9):
1

Arteries

thicker walls than veins, more pressure, no valves, smaller lumen, and circular shape.

2

Veins

thinner walls than arteries, less pressure, contain valves, larger lumen, and irregular shape.

3

3 Layers of Cardiac Muscle Tissue

Tunica Media, Tunica Externa, Tunica Intima

4

Tunica Externa

CT, outermost layer

5

Tunica Media

smooth muscle and elastic fibers, middle layer

6

Tunica Intima

endothelial layer, innermost layer lining the lumen.

7

Larger Artery=

more elastic fibers in tunica media

8

Largest Veins=

tunica media is reduced/absent, tunica externa is thicker than media.

9

Capillaries

single layer of endothelial cells (walls only one cell thick), continuous with tunica intima.