Heart
This is one of the primary roles of the cardiovascular system.
Supplying tissues with oxygen and nutrients
High blood pressure
Hypertension
Cardiac output is the product of heart rate and
Stroke volume
The three layers of tissue
Endocardium, myocardium, epicardium
The heart pumps blood through the body by using these two pumps called
Ventricles
The largest artery in the body
Aorta
This provides an estimate of how hard the heart is working
Systolic pressure
The amount of blood that is pumped out of the left ventricle with each heartbeat
Stroke volume
The thin outer layer that helps protect the heart
Epicardium
The two smaller chambers of the heart that pump blood into the ventricles
Atria
Exercise
Normal blood pressure
120/80
Carotid, radial
The innermost layer of smooth muscle that lines the chambers of the heart and allows blood to flow smoothly
Endocardium
The right ventricle carries deoxygenated blood to this
This small bundle of nerve fibers governs the beating of the heart
Sinus node
An indicator of peripheral blood pressure
diastolic pressure
A typical stroke volume for a normal heart is about this many ml of blood
70
The middle layer of the heart that is that pumps blood
Myocardium
The right atrium pumps deoxygenated blood from the body via one of these
Superior or inferior vena cava
An electrical charge that causes the muscle walls of the heart to contract
Action potential
The two components that make up blood pressure are
Systole, diastole
The amount of blood that is pumped into the aorta each minute by the heart
Cardiac output
The protective sac that loosely surrounds the heart
Pericardium
These valves allow blood to flow into the arteries during ventricular contraction and prevent back flow during ventricular relaxation
Semilunar