Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P > Circulation > Flashcards

Circulation Flashcards

0
Q

Vasodilation is caused by

A

Parasympathetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

Vasoconstriction is caused from

A

Sympathetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Increase resistance =

A

Increase BP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Elasticity

A 
⬆️elasticity = ⬇️BP
⬇️elasticity = ⬆️BP
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Hydrostatic BP

A

Arteriole end of capillary bed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Colloid osmoid pressure

A

Venule end of capillary bed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Blood vessel walls

A

Tunica interna-smooth endothelial lining
Tunica media-contains smooth muscle for dilation & constriction
Tunica Externa-collagen fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Arteries

A

Elastic
Muscular
Arterioles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Capillaries

A

Site of gas and nutrient/waste exchange between blood & tissues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

3 types of capillaries

A

Continuous-skin muscles & BBB
Fenestrated-more permeable, absorption, filtration
Sinusoids-very permeable, large fenestrations, let in bacteria, found in liver bone marrow, lymph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Veins

A

Have lower BP than artery. Thin walls.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Low oxygen causes

A

Precapillary sphinxters to open

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

MAP

A

Mean arterial pressure

MAP=diastolic + 1/3 pulse pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Pulse pressure

A

Difference between systolic-diastolic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

After load

A

⬇️BP=⬇️SV=⬆️HR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Chemicals that increase BP

A

NE/Epinephrine
ADH-⬆️blood volume
Angiotensin II -potent vasodilator

16
Q

Chemicals that decrease BP

A

ANP- produced by heart
Nitric oxide-vasodilator
Inflammatory chemicals
Alcohol-inhibits adh

17
Q

Short term BP regulation

A

Responding to ⬆️BP- baroreceptors in carotid & aorta stretched
Sympathetic is inhibited & parasympathetic increased

⬇️BP-baroreceptors are inhibited. Sympathetic increased

18
Q

Long term BP regulation

A

If BP falls renin is released
Renin➡️Angiogensin II(vasoconst)
Angiotensin II releases aldosterone from adrenals
Aldosterone stimulates kidneys to absorb Na+ water follows
The water ⬆️BV & BP

19
Q

Net filtration pressure

A

Movement of fluid and nutrients at capillary beds. Controlled by hydrostatic & colloid osmotic pressure

A&P (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions