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varic/o
swollen, twisted vein
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ventricul/o
ventricle (belly or pouch)
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atrium
upper right and left chambers of the heart
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endocardium
membrane lining the cavities of the heart
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epicardium
membrane forming the outer layer of the heart
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interatrial septum
partition between right and left atrium
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interventricular septum
partition between right and left ventricle
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pericardium
protective sac enclosing the heart composed of two layers
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pariental pericardium
outer layer of the heart
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pericardial cavity
fluid-filled cavity between pericardial layers
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visceral pericardium
layer closest to the heart
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ventricle
lower right and left chambers of the heart
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heart valves
structures within the heart that open and close with the heartbeat to regulate the one way flow of blood
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aortic valve
heart valve between the left ventricle and the aorta
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mitral or bicuspid valve
heart valve between the left atrium and left ventricle
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pulmonary semilunar valve
heart valve opening from the right ventricle to the pulmonary artery
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tricuspid valve
valve between the right atrium and right ventricle
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arteries
vessels that carry blood from the heart to the arterioles
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aorta
large artery that is the main trunk of the arterial system branching from the left ventricle
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arterioles
small vessels that receive blood from the arteries
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capillaries
tiny vessels that join arterioles and venules
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venules
small vessels that gather blood from the capillaries into the veins
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veins
vessels that carry blood to the heart from the venules
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systemic circulation
circulation of blood throughout the body through arteries, arterioles, capillaries, and veins to deliver oxygen and nutrients to body tissues
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coronary circulation
circulation of blood through the coronary blood vessels to deliver oxygen and nutrients to the heart muscle tissue
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pulmonary circulation
circulation of blood from the pulmonary artery through the vessels in the lungs and back to the heart via the pulmonary vein, providing for the exchange of gases
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diastole
to expand; blood enters the relaxed ventricles from the atria
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systole
to contract; when the heart is in contraction and blood is ejected through the aorta and pulmonary artery
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normotension
normal blood pressure
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hypotension
low blood pressure
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hypertension
hight blood pressure
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sinoatrial node (SA node)
the pacemaker; neurological tissue in the right atrium wall responsible for initiating electrical conduction of the heartbeat, causing the atria to contract and firing conduction of impulses to the AV node
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atrioventricular node
neurological tissue in the center of the heart that receives and amplifies the conduction of impulses from the SA node to the bundle of His
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bundle of His
cardiac muscle fibers that conducts the electrical impulses that regulate the heartbeat.
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normal sinus rhythm (NSR)
regular rhythm of the heart cycle stimulated by the SA node
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arteriosclerosis
thickening, loss of elasticity, and hardening of the arterial walls
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atherosclerosis
building of fatty substances within the walls of the artieries
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atheromatous plaque
a swollen area within the lining of an artery caused by the buildup of fat
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thrombus
a stationary blood clot
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embolus
a thrombus traveling in the blood stream
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stenosis
condition of narrowing of a part
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occlusion
plugging, obstruction or a closing off
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ischemia
to hold back blood
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perfusion deficit
a lack of flow through a blood vessel
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infarct
to stuff; a localized area of necrosis (tissue death)
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angina pectoris
chest pain caused by a temporary loss of oxygenated blood to heart muscle
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aneurysm
a widening; bulging of the heart wall, the aorta, or an artery
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saccular
a sac like bulge on one side
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fusiform
a spindle-shaped bulge
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dissecting
a split or tear of the vessel wall
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claudicatioin
to limp; pain in limbs caused by inadequate blood supply
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diaphoresis
a lot of sweating
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heart murmur
an abnormal sound from the heart
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palpitation
pounding, skipping, or racing heartbeats
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vegetation
to grow; an abnormal growth of tissue around a valve, generally a result of an infection
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arrhythmia
dysrhythmia
irregularity or loss of rhythm of the heartbeat
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bradycardia
slow heart rate
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fibrillation
chaotic, irregular contractions of the heart
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flutter
extremely rapid but regular contractions of the heart
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heart block
a delay in the normal flow of electrical impulses that cause the heart to beat.
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premature ventricular contraction (PVC)
a ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker)
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tachycardia
fast heart rate
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arteriosclerotic heart disease (ASHD)
a degenerative condition of the arteries characterized by thickening of the inner lining, loss of elasticity, and susceptibility to rupture
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bacterial endocarditis
a bacterial inflammation that affects the endocardium or the heart valves
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cardiac tamponade
compression of the heart that occurs when fluid builds up in the space between the heart muscle and the pericardium (outer covering sac of the heart)
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cardiomyopathy
disease of the heart muscle
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congenital anomaly of the heart
malformations of the heart present at birth
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congestive heart failure (CHF)
left ventricular failure
failure of the left ventricle to pump an adequate amount of blood
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coronary artery disease (CAD)
a condition affecting arteries of the heart that reduces the flow of blood, oxygen and nutrients to the heart muscles
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hypertension (HTN)
persistently high blood pressure
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essential (primary) hypertension
high blood pressure attributed to no single cause
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secondary hypertension
high blood pressure caused by the effects of another disease
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mitral valve prolapse (MVP)
when the valve between your heart's left atrium and left ventricle doesn't close properly, resulting in incomplete closure and backflow of blood
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myocardial infarction (MI)
heart attack; death of myocardial tissue owing to loss of blood flow as a result of plugging of a coronary artery
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myocarditis
inflammation of the heart muscles
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pericarditis
inflammation of the pericardium (sac that encloses the heart)
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phlebitis
inflammation of a vein
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rheumatic heart disease
damage to heart muscle and heart valves by rheumatic fever
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thrombophlebitis
inflammation of a vein associated with a clot formation
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varicose veins
abnormally swollen, twisted vein with defective valves
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deep vein thromboi
formation of a clot in a deep vein of the body
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auscultation
listening to sounds within the body
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bruit
noise; an abnormal heart or vessel sound caused by turbulence within
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gallop
an abnormal heart sound that mimics the gallop of a horse
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electrocardiogram
detects and records the electrical activity of the heart
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positron emission tomography (PET) scan of the heart
imagining technique to produce blood flow images and study the cellular metabolism of the heart
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angiography
an x-ray of a blood vessel after injection of contrast medium
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angiogram
a record obtained by angiography
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coronary angiogram
an x-ray of the blood vessels of the heart
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arteriogram
an x-ray of a particular artery
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aorogram
an x-ray of the aorta
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venogram
an x-ray of a vein
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cardiac catheterization
passing a thin flexible tube (catheter) into the right or left side of the heart. a procedure used to diagnose and treat cardiovascular conditions.
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sonograph
sonographic imaging
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echocardiography (ECHO)
recording of sound waves through the heart to evaluate structure and motion
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stress echocardiogram (stress ECHO)
an echocardiogram of the heart recorded during exercise
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coronary artery bypass
grafting of a portion of a blood vessel retrieved from another part of the body
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anastomosis
opening; joining of two blood vessels to allow flow from one to the other
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endarterectomy
incision and coring of the lining of an artery to clear a blockage
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valve replacement
surgery to replace a diseased heart valve with an artificial one
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percutaneous transluminal coronary angioplasty (PTCA)
opens up blocked coronary arteries, allowing blood to circulate to the heart muscle.
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intravascular stent
implantation of a device used to open the wall of a vessel
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defbrillation
termination of ventricular fibrillation by delivery of an electrical stimulus to the heart
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defbrillator
a device that delivers the electrical stimulus in defbrillation
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cardioversion
using electricity or drugs to bring a fast heart rate back to normal
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implantable cardioverter defbrillator (ICD)
a device that's placed in your chest or abdomen that uses electrical pulses to help control irregular heartbeats
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pacemaker
a device used to treat slow heart rates by electrically stimulating the heart to contract
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thrombolytic therapy
dissolution of thrombi using drugs
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antianginal
a drug that dilates coronary arteries, restoring oxygen to the tissues to relieve the pain of angina pectoris
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antiarrhythmic
a drug that counteracts cardiac arrhythmia
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anticoagulant
a drug that prevents clotting of the blood
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antihypertensive
a drug that lowers blood pressure
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beta blockers
beta-adrenergic blocking agents
they slow the heart beat, lessen the force with which the heart muscle contracts and reduce blood vessel contraction in the heart, brain, and throughout the body
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cardiotonic
a drug that increases the force of myocardial contractions in the heart commonly use to treat congestive heart failure
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diuretic
a drug that increases the secretion of urine
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hypolipidemic
a drug that reduces serum fat and cholesterol
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statins
agents that lower cholesterol in the blood
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thrombolytic agen
drugs used to dissolve blood clots
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vasoconstrictor
a drug that causes narrowing of the blood vessels
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vasodilator
a drug that causes dilation of the blood vessels, increasing blood flow
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ASHD
arteriosclerotic heart disease
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CABG
coronary artery bypass graft
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CHG
congestive heart failure
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