Chapter 14 Anatomy of Cardiovascular System Flashcards
1
Q
Arteries
A
thicker walls than veins, more pressure, no valves, smaller lumen, and circular shape.
2
Q
Veins
A
thinner walls than arteries, less pressure, contain valves, larger lumen, and irregular shape.
3
Q
3 Layers of Cardiac Muscle Tissue
A
Tunica Media, Tunica Externa, Tunica Intima
4
Q
Tunica Externa
A
CT, outermost layer
5
Q
Tunica Media
A
smooth muscle and elastic fibers, middle layer
6
Q
Tunica Intima
A
endothelial layer, innermost layer lining the lumen.
7
Q
Larger Artery=
A
more elastic fibers in tunica media
8
Q
Largest Veins=
A
tunica media is reduced/absent, tunica externa is thicker than media.
9
Q
Capillaries
A
single layer of endothelial cells (walls only one cell thick), continuous with tunica intima.
