Brainscape's Knowledge GenomeTM

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


See full index

NUR 213 > CV System review > Flashcards

CV System review Flashcards

1
Q

Primary function of the CV system

A

Deliver oxygenated blood to tissues

Return deoxygenated blood to heart

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

What part of the vascular system is this?

  • Carries oxygenated blood from the heart to the tissues
  • High-pressure system
  • Artery>Arteriole>Capillaries
A

Arterial system

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

What part of the vascular system is this

  • Oxygen and nutrients delivered to tissues
  • Cellular waste removed from tissues
  • Capillaries are abundant in body
A

Capillary bed

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

What part of the vascular system is this

  • Contains valves to prevent backflow
  • Carries blood back to heart
  • Low-pressure system
  • Veins>Venules>Capillaries
A

Venous system

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

Blood supply to the heart 1

A

Left coronary artery

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

Branches of Left coronary artery

A
  • Left anterior descending (LAD) branch
  • Circumflex branch
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What supplies these areas with blood?

  • Both ventricles
  • Anterior interventricular septum
  • Anterior wall of the heart
  • Left atrium
  • Posterior wall of the left ventricle
A

Left coronary artery

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

Blood supply to the heart 2

A

Right coronary artery

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

branches in the right coronary artery

A
  • Right marginal branch
  • Posterior Interventricular branch
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What supplies these areas with blood?

  • Lateral aspect of right atrium and ventricle
  • Posterior aspect of both ventricles and interventricular septum
A

Right coronary artery

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

Receives deoxygenated blood

A

Right Atrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  • Receives blood from right atrium
  • Then goes to lungs (pulmonary artery
A

Right Ventricle

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

Receives oxygenated blood from lungs

A

Left Atrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  • Receives blood from left atrium (pulmonary vein)
  • Then out the Aorta to systemic circulation
A

Left Ventricle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  • located between the atrium and ventricles.
  • When they open blood flows from atria to ventricles
  • When they close it prevents backflow of blood
A

Atrioventricular Valves

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

facilitate one-way flow of blood

A

Heart Valves

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

located between ventricles and their respective arteries

A

Semilunar valves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Chambers of the heart

A

Right Atrium
Right Ventricle
Left Atrium
Left Ventricle

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

Layers of the heart

A
  • Epicardium
  • Mycardium
  • Endocardium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

thin, outer layer of the heart

A

Epicardium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

thick, middle layer of the heart. Responsible for contracting

A

Mycardium

22
Q

thin, inner layer of heart and valves

A

Endocardium

23
Q

Order of cardiac conduct system

A
  1. SA node fires
  2. AV node
  3. Bundle of His
  4. Right and left bundle branches
  5. Purkinje fibers
24
Q

Process in which the membrane potential, the difference in charge between the interior and exterior of the cell, changes or goes up and down in a consistent pattern.

A

Cardiac action potential

25
Q

Movement of ions preceding and facilitating cardiac mechanical contraction.

A

Depolarization

26
Q

The movement of ions back to the resting state, the cardiac resting membrane potential of –90 mV, to allow for the initiation of another action potential.

A

Repolarization

27
Q

The cell is unresponsive to any stimulus.

A

Absolute refractory period

28
Q

T greater-than-normal stimulus may initiate an impulse

A

Relative refractory period

29
Q

How can action potential’s response be measured?

A

EKG or ECG

30
Q

Blood ejected from left side of the heart each minute to facilitate the delivery of oxygen & nutrients to the tissues

A

Cardiac Output

31
Q

4 Determinants of Cardiac Output

A
  • Heart Rate (HR)
  • Preload
  • Afterload
  • Contractility
32
Q

Cardiac output formula

A

HR X SV(stroke volume) = CO

33
Q

Normal CO in adults

A

4 to 7 L/min

34
Q

The amount of blood ejected with each ventricular contraction. Comprised of the preload, afterload, and contractility.

A

Stroke volume

35
Q

The amount of blood returned to the right side of the heart at the end of diastole

A

Preload

36
Q

Pressure that the left ventricle has to pump against or the resistance it must overcome to circulate blood

A

Afterload

37
Q

Force / strength of contraction of the heart muscle

A

Contractility

38
Q

Increase afterload causes….

A

decreases stroke volume, decreases CO

39
Q

Decrease afterload

A

increases stroke volume, increases CO

40
Q

Increase in cardiac output will promote _______

A

Blood flow

41
Q

Decrease in cardiac output will decrease ________

A

blood flow

42
Q

What can decrease contractility?

A

Hypoxia or acidosis

43
Q

What can increase contractility

A

Release of calcium or sympathetic stimulation

44
Q

Decreased cardiac output indicates what?

A
  • Less volume
  • Decreased perfusion to vital organs
45
Q

Increased cardiac output

A
  • More volume
  • Can be caused by hypervolemia
46
Q

Normal EF

A

50-70%

47
Q

% of blood expelled from the left ventricle with every contraction

A

EJECTION FRACTION or EF

48
Q

How can afterload be measured?

A

Systolic BP

49
Q

Carries deoxygenated blood to the lungs

A

Right side of heart

50
Q

Carries oxygenated blood to the rest of the body

A

Left side of heart

NUR 213 (29 decks)

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