Cardiovascular System Flashcards Preview

Medical Terminology > Cardiovascular System > Flashcards

Flashcards in Cardiovascular System Deck (72):
1

aorta

largest artery in the body

2

apex of the heart

lower tip of the heart

3

arteriole

small artery

4

artery

largest type of blood vessel; carries blood away from the heart to all parts of the body.

5

atrioventricular bundle (bundle of HIS)

specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them.

6

atrioventricular node

specialized tissue in the wall between the atria. Electrical impulses pass from the pacemaker (SA node) through the AV node and the atrioventricular bundle or bundle of His toward the ventricles.

7

atrium

one of the two upper chambers of the heart

8

capillary

smallest blood vessel. Materials pass to and from the bloodstream through thin capillary walls.

9

coronary arteries

blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle.

10

deoxygenated blood

blood that is oxygen poor

11

diastole

relaxation phase of the heartbeat

12

electrocardiogram

record of electricity flowing through the heart. Represented by waves or deflections called P, QRS, or T.

13

endocardium

inner lining of the heart

14

endothelium

innermost lining of blood vessels

15

mitral valve

valved between the left atrium and left ventricle; bicuspid valve

16

murmur

abnormal swishing sound caused by improper closure of the heart valves

17

myocardium

muscular, middle layer of the heart

18

normal sinus rhythm

heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 bpm.

19

pacemaker

(sinoatrial node) specialized nervous tissue in the right atrium that begins the heartbeat. An artificial cardiac pacemaker is an electronic apparatus implanted in the chest to stimulate heart muscle that is weak and not functioning.

20

pericardium

double-layered membrane surrounding the heart

21

pulmonary artery

artery carrying O2 POOR blood from the heart to the lungs

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pulmonary circulation

flow of blood from the heart to the lungs and back to the heart

23

pulmonary valve

valve positioned between the right ventricle and the pulmonary artery.

24

pulmonary vein

one of two pairs of vessels carrying oxygenated blood from the lungs to the left atrium of the heart.

25

pulse

beat of the heart felt through the walls of the arteries.

26

septum

partition or wall dividing a cavity. Such as between the right and left atria (interatrial septum) and right and left ventricles (intraventricular septum)

27

sinoatrial node (SA node)

pacemaker of the heart

28

sphygmomanometer

instrument to measure blood pressure.

29

systemic circulation

flow of blood form body tissue to the heart and then from the heart back to body tissues.

30

systole

contraction phase of heartbeat

31

tricuspid valve

located between the right atrium and right ventricle; it has three leaflets, or cusps

32

valve

structure in veins or in the heart that temporarily closes an opening so that blood flows in only one direction

33

vein

thin-walled vessel that carries blood from the body tissues and lungs back to the heart

34

vena cava

largest vein in the body. The superior and inferior venae cavae return blood to the right atrium of the heart

35

ventricle

one of two lower chambers of heart

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venule

small vein

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angi/o

vessel

38

aort/o

aorta

39

arter/o, arteri/o

artery

40

ather/o

yellowish plaque, fatty substance

41

atri/o

atrium, upper heart chamber

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brachi/o

arm

43

cardi/o

heart

44

cholesterol/o

cholesterol

45

coron/o

heart

46

cyan/o

blue

47

myx/o

mucus

48

ox/o

oxygen

49

pericardi/o

pericardium

50

phleb/o

vein

51

rrhythm/o

rhythm

52

sphygm/o

pulse

53

steth/o

chest

54

thromb/o

clot

55

valvul/o, valv/o

valve

56

vas/o

vessel

57

vascul/o

vessel

58

ven/o, ven/i

vein

59

ventricul/o

ventricle, lower heart chamber

60

aarhythmias

abnormal heart rhythms

61

congenital heart disease

abnormalities in the heart at birth

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coarctation of the aorta

narrowing of the aorta

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patent ductus arteriosus (PDA)

passageway between the aorta and the pulmonary artery remains open after birth

64

septal defects

small hole int he wall between the atria or the ventricles

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tetralogy of Fallot

Congenital malformation involving 4 distinct heart defects 1. pulmonary artery stenosis 2. ventricular septal defect 3. shift of aorta to right 4. hypertrophy of the right ventricle.

66

congestive heart failure

heart is unable to pump its required amount of blood

67

coronary artery disease

disease of the arteries surrounding the heart

68

deep vein thrombosis

blood clot (thrombus) forms in a large vein, usually in a lower limb

69

hypertension

high blood pressure

70

peripheral arterial disease

blockage of arteries carrying blood to the legs, arms, kidneys and other organs.

71

raynaud disease

recurrent episodes of pallor and cyanosis primarily in fingers and toes.

72

varicose veins

abnormally swollen and twisted veins, usually occurring in the legs.