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Flashcards in Texas Heart Institute Deck (60):
1

Carries oxygen-rich blood away from heart

arteries

2

carries oxygen-poor blood back to heart

veins

3

carries oxygen-poor blood to lungs

pulmonary artery

4

3 types of blood cells

thrombocytes, leukocytes, erythrocytes

5

What does blood do?

carries O2, CO2, nutrients, and wastes

6

What blood type is a universal donor?

O

7

Regulates blood flow between the right atrium and right ventricle

tricuspid valve

8

The outer layer of the pericardium is attached by ligaments to what?

diaphragm, spinal column

9

Name the chambers of the heart

right and left ventricle; right and left atrium

10

Name the 4 heart valves

tricuspid, mitral, pulmonary, aortic

11

Largest artery in the body

aorta

12

The body's pacemaker

SA (sinoatrial) node

13

Where does the heart's electrical signal begin

SA node

14

Transmits the electrical signal from the atria to ventricle

AV node

15

Controls blood flow from the right ventricle into the pulmonary arteries

pulmonary valve

16

Allows oxygen-rich blood from your lungs pass from the left atrium to the left ventricle

mitral valve

17

What valve opens to allow oxygen-rich blood to pass to the rest of the body

aortic valve

18

What causes the atria to contract?

an electrical signal transmitted by the SA node

19

What part of the 2-part pumping process is longer?

diastole

20

When do the ventricles relax?

after the pulmonary and aortic valves close

21

What causes the tricuspid and mitral valves to open?

decreased pressure in the ventricles

22

When the mitral valve closes, what valves open?

pulmonary and aortic

23

What 2 valves close at the same time?

mitral and triscuspid

24

Which ventricle pushes blood into the lungs to pick up oxygen?

right

25

How much does the heart weigh?

7 lbs, 15 oz

26

What is the purpose of the pericardium?

outside layer attaches heart to diaphragm & spinal column

27

The largest and strongest chamber in your heart?

left ventricle

28

What does the septum separate?

left and right atrium; left and right ventricle

29

Heart rate can change based on?

environment, exercise, health

30

What is the main supplier of blood to the body?

aorta

31

Which side of the heart supplies blood only to the lungs?

right

32

Which side of the heart is larger; more muscular?

left

33

Which node causes the ventricles to contract?

AV node

34

What does the aortic valve do?

prevents backflow of blood into the heart

35

Arteries branch into?

arterioles

36

Arterioles branch into?

capillaries

37

Is the superior vena cava a vein or artery?

vein

38

What area of the body does the superior vena cava supply blood to?

brain

39

What is the significance of the smooth epithelial tissue that lines the inside of blood vessels?

prevents clotting

40

What do coronary arteries do?

circulate oxygenated blood through myocardium and veins and return deoxygenated blood to the right atrium through the coronary sinus.

41

The semilunar valve cusps are anchored by?

chordae tendinae and papillary muscles

42

Where does the exchange of gases, nutrients, and waste products occurs between blood and tissues?

capillaries

43

The cardiovascular system consists of?

heart, blood, and blood vessels

44

What prevents friction between pericardium layers when the heart beats?

serous fluid located between them

45

Where is myocardium located?

heart chamber walls

46

Circulate oxygenated blood through myocardium and veins and return deoxygenated blood to the right atrium through the coronary sinus?

coronary vessels

47

Where is the heart located?

in thoracic cavity between lungs and behind sternum

48

The average heart pumps how many gallons of blood per day?

2,000

49

Four blood types:

A, B, AB, O

50

The left ventricle pushes blood through what valve?

aortic

51

Gas exchange takes place in veins or capillaries?

capillaries

52

Branches off into 2 main coronary arteries?

aorta

53

Why is the right side of the heart smaller?

It only supplies blood to the lungs

54

What causes the heart to contract?

electrical impulses

55

When the electrical signal leaves the AV node, where does it go?

bundle of His

56

What causes a bundle branch block?

CAD, cardiomyopathy, valve disease

57

What are the symptoms of bundle branch block?

fainting

58

How is bundle branch block diagnosed?

ECG or EKG

59

How is bundle branch block treated?

insertion of a pacemaker

60

What is bundle block branch a warning sign of?

heart disease