Blood Vessels 2 Flashcards
1
Q
What is endothelium?
A
Thin inner lining which is smooth to reduce friction in all vessels
2
Q
What direction do arteries carry blood?
A
Away from heart
3
Q
What 4 features do arteries have?
A
Narrower lumen
Thick muscular walls
Elastic layer
Folded endothelium
4
Q
What does the narrower lumen of arteries do?
A
Maintain high pressure
5
Q
What does the thick muscular walls & elastic layer help arteries to do?
A
Stretch & recoil with each ventricular contraction to maintain high blood pressure
6
Q
What does the folded endothelium in arteries help do?
A
Stretching to maintain high pressure
