arterioles
artery's outer layer
at any one time...
blood vessels
capillary
capillary beds
capillary endothelium is...
circulation of blood
desmosomes
diastole
dub
each heartbeat lasts...
endothelium
four chambers
gap junctions between cells...
heart
heart murmurs
inferior vena cava
lub
lymph
lymphatic system
medulla oblongata
middle layer of the arterial wall
myocardium
on average the heart contracts...
precapillary sphincters
sa node is called the pacemaker...
sinoatrial node
superior vena cava
sympathetic portion
systole
the av node's electrical message...
the cardiac cycle
the left side of the heart...
the right side of the heart...
the walls of venules (and veins)...
three types of blood vessels
typically mitral or bicuspid valve is involved...
valves
veins act as a blood reservoir...
venules
when a capillary bed is closed...
when arterioles constrict...
when arterioles dilate...