Chapter 19 Blood Vessels Flashcards
0
Q
Arteries
A
From heart to body; branch and diverge
1
Q
Blood Vessel Length
A
About 60k miles
2
Q
Veins
A
From body to heart; merge and converge
3
Q
Capillaries
A
Contact tissue cells and connect arteries with veins
4
Q
Tunica Interna (Intima)
A
Innermost layer next to lumen.
Simple squamous epithelium
5
Q
Tunica Media
A
Circular layer of smooth muscles and fibers
Control vessel diameter
6
Q
Vasoconstriction
A
Reduction in lumen size
7
Q
Vasodilation
A
Increase in lumen size
8
Q
Tunica externa
A
Loosely woven collagen for protection
