Neural Influences Flashcards
1
Q
- Vascular smooth muscle
- Vasoconstriction
A
- Alpha 1
- Alpha 2
2
Q
- Endothelial Cell
- Vasodilates
A
- Alpha 2 via NO
3
Q
- Cardiac muscle
- NE -> Positive introphic and chronotrophic effect
A
- Beta 1
4
Q
- Vascular smooth muscle
- Circulating EPI
- Vasodilates
A
- Beta 2
5
Q
Vasodilation → ↓ SANS → upstream pressure and downstream pressure?
A
- ↓ upstream pressure → ↑ downstream pressure
6
Q
Vasconstriction → ↑ SANS → upstream and downstream pressure?
A
- ↑ upstream pressure → ↓ downstream pressure
7
Q
Exercise → ↑SANS → upstream and downstream pressure?
A
- ↑ upstream pressure → ↓ downstream pressure → ↑ venous return
8
Q
↑ arteriolar tone → arteriolar resistance → forward movement of blood → peripheral driving pressure →
in venous return
A
- ↑arteriolar resistance → ↓ forward movement of blood → ↑ peripheral driving pressure → ↓ venous return
9
Q
Start to Point A
A
- Venoconstriction
10
Q
Start to Point B
A
11
Q
↑ arteriolar tone → diastolic pressure?
A
- ↑ diastolic pressure
12
Q
↓ arteriolar tone → diastolic pressure?
A
- ↓ diastolic pressure
13
Q
Venoconstriction→ venous return→ end diastolic blood volume → stroke volume → cardiac output
A
↑ venous return→ ↑ end diastolic blood volume → ↑ stroke volume → ↑ cardiac output
14
Q
↓ venous tone → systolic pressure?
A
- ↓ systolic pressure
15
Q
↑ venous tone → systolic pressure?
A
- ↑ systolic pressure
