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AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

AP Flashcards

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5477373918ArrhythmiaAn irregular heartbeat or rhythm0
5477373919Artioventricular node (AV node)A small mass of tissue that transmits impulses received from the sinoatrial node to the ventricles via the bundle of His1
5477373920BradycardiaA normal heart rhythm but with a rate below 60 bpm; a condition amoung athletes2
5477373921DepolarizeTo contract; the atria and ventricles depolarize as the heart beats3
5477373922RepolarizeTo relax; the atria/ventricle repolarize as the heart beats4
5477373923Sinoatrial node (SA node)A small mass of specializes tissue located in the right atrium that normally acts as the pacemaker of the heart, causing it to beat at a rate between 60 and 100 bpm5
5477373924TrachycardiaNormal heart rhythm but with a rate above 100 bpm6
5477373925ArteriesVessels that carry blood away from the heart7
5477373926Brachial arteryArtery located at the fold of the elbow where the brachial pulse is detected8
5477373927CapillariesSmall, thin-walled vessels where oxygen and carbon dioxide gas exchange occurs9
5477373928Carotid arteryArtery located on the side of the neck, where the carotid pulse is felt10
5477373929Ductus arterioususA short, broad vessel in the fetus that connects left pulmonary artery with the descending aorta11
5477373930Foramen ovaleOpening in the septal wall between the atria, normally present only in the fetus12
5477373931Pulmonary circulationCirculation of oxygen-poor blood from the right ventricle, through the lungs, returning to the left atrium with oxygen rich blood13
5477373932Radial arteryArtsy located on the thumb side of the wrist14
5477373933Systemic circulationCirculation of oxygenated blood through the arteries, capillaries, and veins of the circulatory system15
5477373934Vital signsMeasurements of pulse and blood pressure16
5477373935AneurysmAbnormal ballooning of blood vessel, usually an artery, due to weakness in the wallnof the vessel17
5477373936Angina pectorisCondition characteristized by sever, constricting pain or sensation of pressure in the chest; caused by an insufficient supply of blood to the heart18
5479251526Coronary artery diseaseA narrowing of one or more of the coronary arteies due to a build up of plaqur19
5479251527HypertensionCondition that occurs when the force of blood against te arterial wall remains elevated for extended period of time; high blood pressure20
5479251528IschemiaLack of blood floe myeardial infractim- tissue death that occurs in a segment of the heart muscle from blockage of a coronary artery; heart attack21
5479251529PalpitationsSensation of rapid heart beat22
5479251530Transient ischemic attack (TIA)A temp lack of blood flow to the brain23
5479637053AortaA large arterial trunk that arises from the base of the left ventricle and channels blood from the heart into other arteries throughout the body24
5479637054Aortic valveThe semilunar valve between the left ventricle and the arota that prevents blood from flowing back into the left ventricle25
5479637055Artrioventricular (AV) valvesThe two valves (tricuspid and mitral) situated between the atria and the ventricles26
5479637056Cardiac outputThe amount of blodd pumped from the heart per minute27
5479637057DiastoleThe period of relaxation in the heart when the chambers are filling with blood28
5479637058EndocardiumThe innermost layer in the heart , which lines the interior of the heart chamber and covers the valves of the heart29
5479637059EpicardiumThe outermost later of the heart and the innermost layer of the pericardial sac30
5479637060Inferior vena cavaLargest vein of the human body that returns deoxygenated blood to the right atrium31
5479637061Interatrial septumThe wall that seperates the right/left atria in the heart32
5479637062InterventricularThick wall that divides the two ventricles33
5479637063Mitral valveThe valve that closes the orifice between the left atrium and left ventricle34
5479637064MyocardiumMiddle later of the heart which makes up about 2/3 of the heart muscle35
5479637065Papillary muscleOne of the small muscular bundles attached at one end to the chordae tendineae and at the other to the innermost out endocardial wall36
5479637066Semilunar valvesOpening between the heart and aorta37
5479637067Stroke volumeThe volume of blood pumped from the heart per minute38
5479637068Superior vena cavaSecond largest vein in the body that returns deoxygenated blood39
5479637069SystoleA period of contraction when the chambers are pumping blood out of the heart40
5479637070Tricuspid valveThe valve that closes the orifice between the right atrium and right ventricle41
5479637071VasoconstrictionNarrowing of blood vessels, which decreases blood flow42
5479637072VasodilationWidening of the blood vessels, which increases blood flow43

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