Chapter 6 - The Cardiovascular System Flashcards
Aorta
Largest artery of the body; vessel through which oxygenated blood exits the heart
Aortic valve
Valve between the aorta and left ventricle
Arteriole
a tiny artery connecting to a capillary
Artery
A thick-walled blood vessel that, in systemic circulation, carries oxygenated blood away from the heart
Atrioventricular bundle, Bundle of His
bundle of fiberss in the interventricuular septum that transfers charges in the heart’s conduction system; also called bundle of His
Atrioventricular node (AV node)
specialized part of the interatrial septum that sends a charge to the bundle of His
atrioventricular valve
One of two valves that control blood flow between the atria and ventricles
atrium (pl. atria)
Either of the two upper chambers of the heart
Bicuspid valve, Mitral valve
atrioventricular valve on the left side of the heart
blood
Essential fluid made up of plasma and other elements that circulates throughout the body; delivers nutrients to and remove waste from the body cells
Blood pressure
Measure of the force of blood surging against the walls of the arteries
Blood vessel
Any of the tubular passageways in the cardiovascular system in which blood travels
Capillary
The smallest blood vessel that forms the exchange point between arterial and venous vessels
Carbon dioxide
Waste material transported in the venous blood
Cardiac cycle
Repeated contraction and relaxation of the heart as it circulates blood within itself and pumps it out to the rest of the body or the lungs
Cardiovascular
Relating to or affecting the heart and blood vessels
Carotid artery
Artery that transports oxygenated blood to the head and neck
Conduction system
Part of the heart containing specialized tissue that sends electrical charges through heart fibers, causing the heart to contract and relax at regular intervals
Coronary arteries
Blood vessels that supply oxygen-rich blood to the heart
Depolarization
Contracting state of the myocardial tissue in the heart’s conduction system
Diastole
Relaxation phase of a heartbeat
ductus arteriosus
Structure in the fetal circulatory system through which blood flows to bypass the fetus’s nonfunctioning lungs
ductus venosus
stcutrue in the fetal circulatory system through which blood flow to bypass the fetal liver
Endocardium
Membranous lining of the chambers and valves of a heart; the innermost layer of heart tissue
Endothelium
Lining of the arteries that secretes substances into the blood
Epicardium
Outermost layer of heart tissue
Femoral artery
An Artery that supplies blood to the thigh
Foreman ovale
Opening in the septum of the fetal heart that closes at birth
heart
Muscular organ that receives blood from the veins and sends it into the arteries
Inferior vena cava
Large Vein that draws blood from the lower part of the body to the right atrium
Left atrium
Upper left heart chamber
Left ventricle
Lower left heart chamber
lumen
Channel inside an artery through which blood flows
Myocardium
Muscular layer of heart tissue between the epicardium and the endocardium
Pacemaker
Term for the sinoatrial node (SA node); Also, an artificial device that regulates heart rhythm
Pericardium
Protective covering of the heart
Polarization
Resting state of the myocardial tissue in the conduction system of the heart
Popliteal artery
An artery that supplies blood to the cells of the area behind the knee
Pulmonary artery
One of two arteries that carry blood that is low in oxygen from the hearts to the lungs
Pulmonary valve
Valve that controls the blood flow between the right ventricle and the pulmonary arteries
Pulmonary vein
one of four veins then bring oxygenated blood from the lungs to the left atrium
Pulse
Rhythmic expansion and contraction of a blood vessel, usually in artery
Repolarization
Recharging state; transition from contraction to resting that occurs in the conduction system of the heart
Right atrium
upper right chamber of the heart
Right ventricle
Lower right chamber of the heart
Saphenous vein
Any of a group of veins that transport deoxygenated blood from the legs
Semi lunar valves
One of the two valves that prevent the backflow of blood flowing out of the heart into the aorta and the pulmonary artery
Septum (pl. septa)
Partition between the left and right chambers of the heart
Sinoatrial node
Region of the right atrium containing specialized tissue that sends electrical impulses to the heart muscle, causing it to contract
Sinus rhythm
Normal heart rhythm
Superior vena cava
Large vein that transports blood collected from the upper part of the body to the heart
Systole
contraction phase of the heartbeat
Tricuspid valve
Atrioventricular valve on the right side of heart
Valve
Any of various structures that slow or prevent fluid flow from going backward or forward
vein
Any of various blood vessels caring deoxygenated blood toward the heart, except the pulmonary vein
Vena cava (pl. vena cavae)
See superior vena cava and inferior vena cava
Ventricle
Either of the two lower chambers of the heart
venule
A tiny vein connecting to capillary
angi(o)
blood vessel
aort(o)
aorta
arteri(o), arter(o)
artery
ather(o)
fatty matter
atri(o)
atrium
cardi(o)
heart
hemangi(o)
blood vessel
pericardi(o)
pericardium
phleb(o)
vein
sphygm(o)
pulse
thromb(o)
blood clot
vas(o)
blood vessel
ven(o)
vein
AcG
accelerator globulin
AF
atrial fibrillation
AMI
acute myocardial infarction
AS
aortic stenosis
ASCVD
Atherosclerotic cardiovascular disease
ASD
Atrial septal defect
ASHD
Arteriosclerotic heart disease
AV
Atrioventricular
BP
Blood pressure
bpm
Beats per minutes
CABG
Coronary artery bypass graft
CAD
Coronary artery disease
cath
Catheter
CCU
Coronary care unit
CHD
Coronary heart disease
CHF
Congested heart failure
CO
cardiac output
CPK
creatine phosphokinase
CPR
Cardiopulmonary resuscitation
CVA
Cerebrovascular accident
CVD
Cardiovascular disease
DIC
Disseminated intravascular coagulation
DSA
Digital subtraction angiography
DVT
Deep venous thrombosis
ECG, EKG
Electrocardiogram
echo
Echocardiogram
ETT
Exercise tolerance test
GOT
glutamic oxaloacetic transaminase
HDL
High-density lipoprotein
HR
Heart rate
LDH
Lactate dehydrogenase
LC
Left ventricle
LDL
Low density lipoprotein
LVH
Left ventricular hypertrophy
MI
Myocardial infarction; Mitral insufficiency