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Flashcards in Intro to cardiac cycle Deck (26)
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1

The right heart supplies blood to the systemic circuit and the left heart supplies blood to the pulmonary circuit. True or false?

False - right -> pulmonary, left -> systemic

2

What are the four major systemic arteries?

Aorta
Femoral
Brachial
Carotid

3

What are the two major systemic veins?

Jegular
Vena cava (inferior and superior)

4

What are the vessel types in order of blood flow?

Arteries -> arterioles -> pre-capillary sphincter -> capillary -> venule -> vein

5

What are the four valves of the heart?

Right AV (tricuspid)
Left AV (bicuspid)
Pulmonary semilunar (right)
Aortic semilunar (left)

6

What is the difference between the superior vena cava and inferior vena cava?

Superior carries blood from all parts of the body above the diaphragm
Inferior carries blood from all parts below diaphragm

7

Pulmonary arteries are only arteries that carry deoxygenated blood. True or false?

True

8

Pulmonary veins are the only veins that carry oxygenated blood. True or false?

True

9

Blood flows through systemic circuit first and then flows through pulmonary circuit. True or false?

False - blood flows through both simultaneously

10

After contraction, there is a point at which the atria and ventricles are empty. True or false?

False - never fully empty

11

Why is arterial pressure always high, even during diastole?

Because after contraction, there is still some blood left in atria so aortic valve closes to prevent backflow from arteries into ventricles. Pressure is high as blood remains contained.

12

What is meant by end diastolic volume?

The volume of blood in ventricle at diastole (after filling) - max vol in cardiac cycle

13

What is meant by end systolic volume?

The volume of blood in ventricle at systole (after emptying) - lowest vol in cardiac cycle

14

Where is the mitral (bicuspid) valve located?

Between the left atrium and left ventricle

15

During ventricular systole, the mitral valve opens. True or false?

False - closes to prevent blood going from ventricles to atrium (and pulmonary vein)

16

Where is the aortic valve located?

Between the left ventricle and aorta

17

Systolic BP is the same as ventricular pressure. True or false?

True

18

Diastolic BP is the same as diastolic LV pressure. True or false?

False

19

With each heartbeat, the left and right ventricles contract together. True or false?

True

20

What is the equation for cardiac output?

CO = HR x SV

21

What is stroke volume?

The volume of blood pumped from each ventricle, with every beat

22

What is the typical value for SV?

70ml

23

What is the typical heart rate value?

70bpm

24

What is normal BP classed as?

<130 / <85 mmHg

25

What is optimal BP classed as?

<120 / <80 mmHg

26

In a resting person, the heart must pump 5/6L blood per minute. True or false?

True