Anatomy Of Blood Vessels Flashcards
1
Q
Layers
A
-Tunics
-tunica interna
-tunica media
-tunica externa
(Capillaries being the exception)
2
Q
Tunica interna
A
- thin layer of endothelium
- reduces friction in blood flow
- continuous with the endocardium of the heart
- lines the lumen
3
Q
Tunica media
A
- made of smooth muscles and elastic fibers
- controlled by the SNS
- changes the diameter in blood vessels
- construction increases BP
- dilation decreases BP
4
Q
Tunica externa
A
- made of fibrous connective Tissue
- supports and protects vessels
