Cardiac Cycle Flashcards

1
Q

Isovolumetric ventricular contraction:

Aortic Valve

A

Closed

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

Isovolumetric ventricular contraction:

Mitral valve

A

Closed

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

Isovolumetric ventricular contraction:

LV pressure

A

Increases

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

Isovolumetric ventricular contraction:

LV volume

A

Constant

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

What cardiac event causes the S1 heart sound?

A

Mitral valve closure

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

What cardiac event marks the beginning of isovolumetric contraction?

A

Mitral valve closure

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

Ventricular ejection:

Aortic valve

A

Open

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

Ventricular ejection:

Mitral valve

A

Closed

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

Ventricular ejection:

Ventricular volume

A

Decreasing (Stroke volume)

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

Isovolumetric relaxation:

Aortic valve

A

Closed

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

Isovolumetric relaxation:

Mitral valve

A

Closed

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

What cardiac event is responsible for the S2 heart sound?

A

Aortic valve closing

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

Isovolumetric relaxation:

LV pressure

A

Decreases

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

Isovolumetric relaxation:

LV volume

A

Constant

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

What does the dicrotic notch seen on the arterial pressure waveform signify?

A

Closure of the aortic valve causes some retrograde flow from the aorta towards the aortic valve

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

What is lusitropy?

A

Myocardial relaxation

17
Q

Does lusitropy require energy?

A

Yes; ATP is required to pump Ca++ back into the sarcoplasmic reticulum

18
Q

Ventricular filling:

Mitral valve

A

Open

19
Q

Ventricular filling:

Aortic valve

A

Closed

20
Q

Ventricular filling:

LV pressure

A

Constant

21
Q

Ventricular filling:

LV volume

A

Increasing

22
Q

Atrial systole:

Aortic valve

A

Closed

23
Q

Atrial systole:

Mitral valve

A

Opened

24
Q

What two points are associated with diastole?

A

B, C

25
Q

What two points are associated with systole?

A

A, D

26
Q

Isovolumetric contraction

A

D

27
Q

Ventricular ejection

A

A

28
Q

Isovolumetric relaxation

A

B

29
Q

Ventricular filling

A

C

30
Q

Aortic valve closes

A

A

31
Q

Mitral valve closes

A

C

32
Q

Mitral valve opens

A

B

33
Q

Aortic valve opens

A

D

34
Q

Identify the etiology for the change in the pressure volume loop.

A

Increased preload

35
Q

Identify the etiology for the change in the pressure volume loop.

A

Increased contractility

36
Q

Identify the etiology for the change in the pressure volume loop.

A

Increased afterload

37
Q

Identify the etiology for the change in the pressure volume loop.

A

Decreased preload

38
Q

Identify the etiology for the change in the pressure volume loop.

A

Decreased contractility

39
Q

Identify the etiology for the change in the pressure volume loop.

A

Decreased afterload