Brainscape's Knowledge GenomeTM

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


See full index

Cardiac > ECG > Flashcards

ECG Flashcards

1
Q

P wave =

A

Atrial depolarization

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

QRS complex =

A

Ventricular depolarization

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

T wave =

A

Ventricular repolarization

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

Order of heart valves

A

Tissue (tricuspid)
Paper (pulmonary)
My (mitral)
Assets (aortic)

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

Conductions of heart cycle

A

SA node -> AV node -> Bundle of His -> Purkinje fibers

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

Renin-Angiotensin-Aldosterone System (RAAS)

- 8 steps

A
  1. Renin (cells of renal arterioles)
  2. Angiotensin ( liver)
  3. Angiotensin I
  4. Angiotensin Converting Enzyme(ACE)(lungs/kidneys)
  5. Angiotensin II
  6. Aldosterone (adrenal cortex)
  7. reabsorption and retention of sodium & water
  8. increased blood volume & increased BP
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

systole

A

ventricular contraction

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

diastole

A

heart relaxes and and allows chambers to fill with blood

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

endocardium

A

inner layer of cardiac tissue that lines the heart chambers

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

myocardium

A
  • made of muscle fibers
  • responsible for pumping action of heart
  • thickness varies in each chamber
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

epicardium

A
  • outer layer of heart
  • also the visceral pericardium
  • coronary arteries are embedded in it
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

S1 (lub)

A

-occurs when ventricles contract during systole and when the mitral and tricuspid valves close

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

S2 (dub)

A

occurs during ventricular relaxation or diastole and is caused by the closing of the aortic and pulmonic valves

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

normal stroke volume

A

60-100mL

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

normal cardiac output

A

4-8 liters/minute

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

cardiac output equation

A

CO = Heart rate x stroke volume

17
Q

preload

A

the amount of blood remaining in a ventricle at the end of the diastole or the pressure generated at the end of diastole

18
Q

factors that INCREASE preload

A
  • increased venous return to the heart

- overhydration

19
Q

factors that DECREASE preload

A
  • dehydration
  • hemorrhage
  • venous vasodilation
20
Q

Afterload

A
  • the amount of pressure the ventricles must overcome to eject the blood volume
  • determined by pressure in the arterial system
21
Q

factor that DECREASES afterload

A

vasodilation

22
Q

factor that INCREASES afterload

A

vasoconstriction

23
Q

the transfer of O2 and nutrients between blood and the tissue cells occurs in

A

capillaries

Cardiac (4 decks)

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