cardoivascular Flashcards
heart
is a muscular organ that pumps blood throughout the body
four chambers
right and left atrium right and left ventricle
septum
seperates the left and right side of our chambers
arteries
oxygenated blood away from the heart
veins
deoxygenated blood back to the heart
capillaries
connect arteries and veins
systole
contraction of heart lub sound
diastole
relaxation dub sound
during systole
the blood is being pumped out of the heart into the arteries lub sound
during diastole
blood flowing into the heart filling the chambers dub sound
sinoatrial node
upper right atrium primary pacemaker of the heart responsible for sinus rythms 60-100 BPM
atrioventricular node
located between the atria and ventricles 40 - 60 BPM
bundle of his
left and right bundle branch
go between the left and right of the heart ending in the purkinje fibers
purkinje fibers
last ditch effort 20 - 40 BPM
pacemakers
help let the know that it needs to contract
deoxygenated blood
veins to right atrium to right ventricle to lungs
oxygenated blood
lungs to left atrium to left ventricle to aorta to body
function 1
delivers oxygen and nuitrents to the cells of the body and removes carbon dioxide and waste
function 2
maintains bodys blood pressure
function 3
regulates body temperture
function 4
maintains bodys pH
function 5-8
transporting hormones, fighting infections, aiding in digestion, assiting in repair of damaged tissues
what produces all the blood in the body
bone marrow
