CARDIAC PHISIOLOGY

Question 1

What is the END DIASTOLIC VOLUMEN and END SYSTOLIC VOLUME?

Answer 1

Question 2

What is stroke volume? Fraction ejection and cardiac output?

Answer 2

Question 3

What is mean arterial pressure and how to obtain it?

Question 4

How can we increase the preload?

Answer 4

Question 5

How can we decrease preload?

Answer 5

Question 6

What is the afterload?

Answer 6

Question 7

How can we increase the afterload?

Answer 7

Question 8

How can we decrease the afterload?

Answer 8

Question 9

What does increases contractability of the heart? 3 F and 2 F

Answer 9

Question 10

How to decrease contractibility of the heart?

Answer 10

Question 11

Dobutamine is a __________

Answer 11

beta 1 receptor agonist

Question 12

What is preload?

Answer 12

Is the volume in the left ventricle at the end of diastole.

Question 13

Question 14

How can we obtain pulse pressure?

Answer 14

SBP-DBP

Question 15

What is lusitropy??

Answer 15

myocardial relaxation
Opposite of contraction

Question 16

Question 17

Name the 3 local substances that produce vasodilation during exercise in skeletal muscle

Answer 17

1. Adenosine
2. K
3. Lactic Acid

Question 18

How manitol works?

Answer 18

Increases plasma osmolarity preventing fluid movement into interstitial space.

Question 19

Question 20

What valve is affected in rheumatic fever?

Answer 20

MITRAL ESTENOSIS.

It causes a diastolic murmur.

Question 21

Answer 21

Volume in the left ventricle at the end of diastole

Question 22

Answer 22

Cardiac output is the heart rate times the stroke volume,

Question 23

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Question 25

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Question 30

Answer 30

Left ventricular preload is the volume at the end of diastole when the ventricle starts to contract and close of the mitral valve.

Question 31

Answer 31

Closured of the mitral and tricuspid valve at point A.

Question 32

Answer 32

40 mmHg

Question 33

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Question 40

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Question 41

What is a cannon a wave?

Answer 41

Atrial contraction when the tricuspid valve is closed bringing backwards blood.

Question 42

Answer 42

PVC produce cannon a waves

Question 43

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Question 48

Where is located the coronary sinus?

Answer 48