Peripheral Circulation: Collecting Vessels Flashcards
1
Q
What is the “a” wave?
A
Right atrial contraction
2
Q
What is the “x” wave?
A
Right ventricle contraction pulling on veins
3
Q
What is the “v” wave?
A
Isometric relaxation when the RA is filling with tricuspid closed
4
Q
What occurs to veins during expiration?
A
Veins are compressed
5
Q
What occurs to veins during inspiration?
A
Veins expand
6
Q
How is orthostatic hypotension avoided?
A
Autonomic contraction of venous smooth muscle to prevent blood from pooling in lower veins
7
Q
Three basic functions of lymphatic system?
A
Fluid recovery, immunity and lipid absorption
8
Q
What is the driving force for lymph flow?
A
Interstitial fluid pressure
9
Q
What is alpha adrenergic receptors effect on lymphatics?
A
Contraction
10
Q
What is beta adrenergic receptor effects on lymphatics?
A
Relaxation
