Cardio System Flashcards

1
Q

Atrioventricular bundle (His)

A

Connects atria with ventricles and transmits impulses

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2
Q

Atrioventricular node (AV node)

A

Tissue in wall behind atria

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3
Q

Atrium

A

One of upper chambers of heart

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4
Q

Capillary

A

Smallest blood vessel

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5
Q

Coronary arteries

A

Blood vessels branching from aorta that carry blood to heart

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6
Q

Electrocardiogram

A

Record of electricity in heart

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7
Q

Apex of heart

A

Lower tip of heart

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8
Q

Diastole

A

Relaxed phase of heart (tricuspid/mitral valves open and pulmonary/aortic valves close

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9
Q

Endocardium

A

Inner lining of heart

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10
Q

Endothelium

A

Innermost lining of blood vessel

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11
Q

Mitral valve

A

Bicuspid valve; between left atrium and left ventricle

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12
Q

Normal sinus rhythm

A

Heart rhythm in sinoatrial node 60-100 BPM

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13
Q

Pacemaker (sinoatrial)

A

Nervous tissue in right atrium begins heartbeat

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14
Q

Pericardium

A

Double-layered membrane surrounding heart

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15
Q

Pulmonary artery

A

Carries oxygen poor blood from heart to lungs

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16
Q

Pulmonary circulation

A

Flow of blood. Heart to lungs and back

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17
Q

Pulmonary valve

A

Between right ventricle and pulmonary artery

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18
Q

Pulmonary vein

A

1 of 2 pairs of vessels carry oxygenated blood from lungs to left atrium

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19
Q

Septum

A

Wall dividing a cavity

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20
Q

Sphygmomanometer

A

Measures blood pressure

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21
Q

Systemic circulation

A

Blood flow from tissue to heart and back

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22
Q

Systole

A

Contraction phase of heart beat

23
Q

Tricuspid valve

A

Between right atrium and right ventricle; has 3 leaflets/cusps

24
Q

Vena cava

A

Largest vein in body

25
Q

Ventricle

A

One of 2 lower chambers of heart

26
Q

Bradycardia and heart block

A

Failure of impulses from SA node through AV node to atrioventricular bundle

27
Q

Flutter

A

Rapid but regular contractions

28
Q

Fibrillation

A

Rapid, random, inefficient, irregular contractions

29
Q

Coarctation of aorta

A

Narrowing of aorta

30
Q

Patent ductus arteriosus (PDA)

A

Passageway between aorta and pulmonary artery remains open after birth

31
Q

Septal defects

A

Holes in wall between atria or ventricles

32
Q

Tetralogy of fallot

A

4 heart defects caused by malformation (septal defect, thickening of wall of right ventricle, coarctation of aorta, displacement of aorta

33
Q

Congestive heart failure (CHF)

A

Heart can’t pump enough blood

34
Q

Coronary heart disease (CAD)

A

Disease of arteries around heart (thrombotic occlusion, emboli, ischemia, necrosis, infarction)

35
Q

Veins

A

Thinner walls than arteries move blood toward heart

36
Q

Arteries

A

Vessels that lead away from heart

37
Q

Pathway of blood through heart

A

Through superior/inferior vena cava, (to heart) right atrium/tricuspid valve/right ventricle, (to lungs) pulmonary artery/lung capillaries/pulmonary vein, (back to heart) left atrium/mitral valve/left ventricle, aorta then all over body

38
Q

Diastole-systole cycle

A

70-80 times a minutes. Heart pumps 3oz of blood each contraction (5 quarts pumped a minute)

39
Q

Blood pressure

A

Force that blood exerts on arterial walls (systolic/diastolic)

40
Q

Hypertension

A

BP greater than 140/90

41
Q

Endarterectomy

A

Surgical removal of plaque from inner layer of an artery

42
Q

Acute coronary syndromes (ACS)

A

Unstable angina, myocardial infarction

43
Q

Atherosclerosis

A

Deposition of fatty compounds on inner lining of coronary arteries

44
Q

DVT

A

Deep vein thrombosis

45
Q

HTN

A

Hypertension

46
Q

PVD

A

Peripheral vascular disease (blockage of blood vessels outside heart)

47
Q

Raynaud disease

A

Pallor and cyanosis in fingers and toes

48
Q

Petechiae

A

Small pinpoint hemorrhages

49
Q

Varicose veins

A

Swollen twisted veins

50
Q

Angiography

A

X-Ray of blood vessels after injection of contrast material

51
Q

DSA

A

Digital subtraction angiography

52
Q

Electron beam computed tomography (EBCT/EBT)

A

Identifies calcium deposits in/around coronary arteries

53
Q

Doppler ultrasound

A

Measure blood flow w/in blood vessels

54
Q

Echocardiography (ECHO)

A

Images of heart produced by echoes