Brainscape's Knowledge GenomeTM

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


See full index

PSL301 > PSL301: Cardio 6 > Flashcards

PSL301: Cardio 6 Flashcards

1
Q

How much blood goes into the heart each pump?

A

0.2 L/min

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

How much blood goes into the brain each pump?

A

0.7 L/min

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

Which part of the body does blood flow stay constant?

A

Brain

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

Where does the most blood get distributed to?

A

Liver

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

Where do 1/4 of the CO get wired to?

A

Kidneys

Skeletal muscles

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

What directly affects EDV?

A

Venous return

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

What affects venous return?

A
  1. Blood volume
  2. Intrathoracic pressure
  3. Venous pressure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

At the capillaries, blood always picks the vessel with the lowest…

A

resistance

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

When one capillary is pinched off, the overall __ is unchanged

A

flow

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

Pressure in ventricle varies from…

A

10 mmHg to 120 mmHg

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

Formula: MAP

A

MAP = diastolic P + 1/3(systolic P - diastolic P)

= 2/3(diastolic P) + 1/3(systolic P)

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

MAP is better known as…

A

Average blood pressure

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

Arteries store pressure from left ventricle contraction, then uses ___ to send blood to the rest of the body during ventricular diastole

A

elastic recoil

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

Formula: pulse pressure

A

systolic P - diastolic P

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

MAP is a function of…

A

CO

Resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Define: pulse

A

Pressure wave of circulating blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Where can pulses be felt?

specific

A
  • temperal artery
  • facial artery
  • carotid arter
  • brachial artery
  • radial artery
  • femoral artery
  • popliteal artery
  • posterior tibial artery
  • dosalis pedis artery
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Where can pulses be felt? (general)

A

pressure points

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What sounds are heard while measuring blood pressure?

A

Korotkoff sounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

5 Korotkoff sounds

A
  1. Snap: systolic pressure
  2. Murmurs
  3. Taps
  4. Thumping / muting: 10 mmHg above diastolic
  5. Silence: diastolic
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Stages of hypertension

A
  1. Normal
  2. Hypertension stage 1
  3. Hypertension stage 2
  4. Hypertensive crisis (emergency!!)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is normal blood pressure?

A

less than 120

Less than 80

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

(Pre)-hypertension ____ CVD risk

A

Increases

Positive correlation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

MAP is determined by…

A
  1. Blood volume
  2. CO
  3. Resistance
  4. Distribution of blood between arteriole & venous system

(1) and (4) are usually pretty consistant

25
Q

2 responses to increased blood pressure?

which one is slow/fast?

A
  1. Cardio compensation (fast)

2. Kidney compensation (slow)

26
Q

How does the cardio system compensate for high blood pressure?

A
  • vasodilation

- decreased CO

27
Q

How does the renal system compensate for high blood pressure?

A

More fluid excreted in urine

Renin-angiotensin system

28
Q

Baroreceptors are located at the…

A

Major arteries

  • Aortic arch
  • Carotid sinus
29
Q

What is the baroreflex?

A

response to increased / decreased BP

Sensed by baroreceptors

30
Q

At normal state, what is the baroreflex like?

A

Baroreceptors fire at constant rate

31
Q

When BP is increased, the firing of baroreceptors…

32
Q

Baroreceptors report to…

A

cardiovascular control center in medulla oblongata

33
Q

alpha-receptor for NE causes…

beta-receptor for NE causes…

A

vasodilation

vasoconstriction

34
Q

Ultimately, what lowers the BP?

A
  • Decreased peripheral resistance

- Decreased CO

35
Q

Orthostatic hypotension

A

“head rush”
Decrease in BP due to standing up
Blood has pooled in the feet, so not enough going to head

36
Q

What secretes renin?

A

Juxtaglomerular apparatus

37
Q

Purpose of renin

A

Angiotensinogen -> ANG I

38
Q

What cleaves ANG I -> ANG II

39
Q

What does ANG II do?

A
  • Vasoconstrict vessels by binding to AT1 receptors in blood vessels
  • Stimulates production of aldosterone at adrenal cortex by binding to AT1 receptors in adrenal gland
40
Q

Where is aldosterone produced?

A

adrenal cortex

41
Q

Where is the adrenal cortex located?

A

on top of the kidney

42
Q

What does aldosterone do?

A

Tells kidneys to retain salt & water

43
Q

The cleaving of ANG I -> ANG II happens at the…

44
Q

Renin-angiotensin-aldosterone (RAAS) is only activated…

A

chronic low blood pressure

45
Q

Where is ACE found?

A

in the lungs

46
Q

Purpose of RAAS?

A

Raise blood pressure & volume

47
Q

Where does aldosterone act?

A

at kidneys

48
Q

Aldosterone is a part of the __ family

49
Q

How does aldosterone increase salt and water retention at the kidneys?

A

Increase expression of Na/K pumps & Na channels on collecting duct

Pumps Na to ISF -> blood

50
Q

What receptor does ANG II bind to?

51
Q

Is it possible for angiotensinogen -> ANG II directly?

A

Yes (alternate pathway)

52
Q

During the reaction with ACE, bradykinin ->

A

inactive fragments

53
Q

Feedback in the RAAS is from…

A
  • Na intake

- Decreased renin secretion

54
Q

ANF is produced by…when…

A

Atria in response to high blood pressure

55
Q

ANF

A

Atrial natriuretic factor

56
Q

What does ANF do?

A
  1. Vasodilation
  2. Decrease renin production
    (Promote water & salt secretion)
57
Q

Abbreviations for atrial natriuretic factor

A

ANF / ANP / ANH

58
Q

__ antagonizes the effects of ANG II

PSL301 (29 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions