Category 1
referring to the heart
cardi-
within
intra-
concentration is oxygen rich
oxygenated
referring to the lungs
pulmonary
between
inter-
concentration is oxygen poor
deoxygenated
pertaining to the body
systemic
blood vessel taking blood back to the heart
veins
top two chambers of the heart
atria
the amount of pressure exerted on blood vascular walls
blood pressure
innermost layer to the heart
endocardium
protective sac that surrounds the heart
pericardium
phase of the cardiac cycle where relaxation occurs
diastole
largest artery delivering blood to the body
aorta
blood vessel taking blood away from the heart
artery
outer layer of the heart that covers the heart muscle
epicardium
small artery used to connect arteries with a capillary bed
arteriole
largest vein delivering blood back to the heart
vena cava
epithelial cells that are used to line blood vessels, the
heart and some cavities of the body
endothelium
small vein used to connect veins with a capillary bed
venules
bottom two chambers of the heart used for pumping
ventricles
a structure used as a partition, dividing the heart into
left and right halves
septum
thick middle layer of the heart made of muscular tissue
myocardium
70% of blood fills the ventricles by use of gravity
ventricular filling
phase of the cardiac cycle where contraction occurs
systole