vasoregulation -bolz Flashcards Preview

Undeleted > vasoregulation -bolz > Flashcards

Flashcards in vasoregulation -bolz Deck (18):
1

what is most problematic metabolic biproduct

CO2

2

where is high P system, and how much blood there

arteries - 23%

3

how does blood dist change in excercise

major increase to muscle, away from gut

4

3 important functions of RBC being too large for caps

1. slows time
2. increases surface contact
3. little distance to walls

5

what is importance of small and medium arteries

bring P down before caps.

6

how do resistance arts. reg. P to caps.

constrict r to change resitance

7

what are adrenaline targets, where do they occur, and what do they do (2)

a-receptors - gut - vasoconstrict
B-receptors - muscle - dilate

8

what is step 1 of mygenic response

muscles signal need for more blood - dilates sector 1

9

what art. reaction to increase in P (2 steps)

1. immediate swelling
2. hard contraction against P

10

what does adrenaline do to BP on its own

incr. BP

11

what do resistance arts. do in response to high BP

constrict to protect Caps.

12

what is main regulator of tone in resistance As

myogenic response

13

within what BP range will blood flow to brain be constant

60-170

14

what is sector 2s response to metabolic activity

descrease perfusion pressure

15

whats is sector 3's response to sector 2

increase blood flow

16

what are 3 types of vasodilation in 3 sectors

1. metabolic
2. myogenic
3. endothelium mediated

17

what is competing model to myogenic response

conducted vasodilation vis connexons

18

how can we assess connexon model

Cx40 (connexon gene) knockout lead to reduced conduction

Decks in Undeleted Class (589):