cardiovacular system Flashcards
what carries blood away from the heart
arteries
what carries blood to the heart
veins
what is the outer, surronding membrane of the heart
pericardium
what is the middle, muscle made heart layer called
myocardium
what is the tissue that seperates the heart into right and left sides called
atrioventricular septum
what is the layer called within the lining of the ventricles
endocardium
what vein carries blood from upper body
superior vena cava
what vein carriesz blood fro the lower body
inferior vena cava
what vein carries blood from the right lungs
right pulmonary veins
what vein carries blood from the left lungs
left pulmoary veins
where does the pulmonary artery travel blood
to the left and right lungs
what valve comes between the right atrium and the right ventricle
tricuspid valve
what valve is between the right ventricle and pulmonary artery
pulmonary valve
what valve is inbetween the left atrium and left ventricle
mitral/bicuspid valve
what valve is between the left ventricle and the airta
aortic valve
describe the pathway of oxgenated blood through the heart
comes into the pulmonary veins from the lungs, moves through the mitral valve to the left ventricle, then moves through the aortic valve where the aorta disperses it to the upper an dlower body
describe the pathway of deoxygenated blood through the heart
comes into the superior/inferior venacavas, then moves through the right atrium into the tricuspid valve. Then it comes from the right ventricle through the pulmonary valve and into the pulmonary artery
what is the sa node
pacemaker of the heart, it initiates the heart beat.
where do electrical impulses move after the sa node
to the atria
what does the av node to with the electrical impulse
it recieves, then delays, the impulse. This allows the atria to empty the blood into the ventricles
what happens after the delay
the sa node sends a signal to the av node to continue
what does the bundle of his do
seperates into left and right branches , which go towards the apex of the heart
where does the signal travel and spread
it tr5avels to the purkinje fibers and spreads through the ventricles
the right sie of the heart pumps—-
carbon dioxide rich blood to the lungs
the aorta is an
artey
what kind of blood is carries in veins
carbon dioxide and waste
capillary walls are how many cells thick
only one cell
what are the 2 atricular ventricle valves and when do the close
the tricuspid and mitral. (the heart contracts) when the ventricles are full and puishing blood through the pulmonary artery
what are the 2 semi lunar valves and when do they close
pulmonary and aortic (the heart relaxes) when blood flows from the atria to the ventricles
condition of a slow heartbeat
bradycardia
the relaxtion phase of the heartbeat
diastole
clots that travel and suddenly block a blood vessel
emboli
malfomation involving four heart defects
tetralogy of fallot
enlargement of the heart
cardiomegaly
chest pain resulting from not enough oxygen being suppliedx to the heart
angina
inflammation of a vein
phlebitis
rapid but regular atria contractions
flutter
heart sound caused by improper closer of heart valves
murmur
inability of the heart to pump enough blood
congestive heart failure
area of dead tissue
infarction
what is the pace maker of the heart
SA node
pulmonary vs systemic circ.
pulm- heart and lungs
sys-heart and body cells
What is the congenital malformation involved in four separate heart defects
tetralogy of fallot
enlargemnt of the heart
cardiomegaly
inflammation of a vein
phlebitis
area of dead tissue
infarction
pacemaker of the heart
SA node
rapid and random contractions of the heart
fibrillation
what do veins have that help prevent backflow of blood
valves
nutrients are burned to realease what
ATP
catabolism
breaking down
5 example of cardiac arrythmias
bradycardia, tachycardia, ventricular fibrillation, atrial fibrillation, atrial flutter
what is it called when areas of heart myscle dont get enough oxygen
myocardial infarction
what valves close during diastole
tricuspid and mitral
what two valves close during systole
pulmonary and aortic
a small vein
venule
tissue between the ventricle wals
bundle of his
inner lining of thr pericardium
visceral pericardium
inability of the heart to pump its required amount of blood
congestive heart failure
blockage of the arteries
coronary artery disease
widening of an artery
aneurysm
high blood pressur related to kidney diseas
secondary hypertension
plaque build up that hardens the arteries
atherosclerosis
excessive development
hypertrophy
holding back blood
ischemia
angioplasty
surgical repair of a blood vessel
angio
blood vessel
disease condition of the heart muscle
cardiomyopathy
athero
plaque/ fat
atri/o
atrium
axill/o
armpit
brachi/o
arm
coron/o
heart
isch/o
to hold back
myx/o
mucus
phleb/o
vein
spygm/o
pulse
steth
chest
thromb
clot
vas/o
vessel
contriction
narrowing
dialation
widening
emia
blood condition
-graphy
process of recording
-lysis
destruction
-megaly
enlargement
-meter
measure
stenosis
tightening
