AHS- CHP11- Cardiovascular System

function of cardiovascular system

deliver blood to the body

supply oxygen and nutrients throughout the body

remove carbon dioxide and other waste

what are the major components of the cardiovascular system

heart and blood vessels

left side of the heart

takes in oxygen-rich blood from the lungs

pumps oxygenated blood to the body

right side of the heart

receives blood from the body that is low in oxygen and CO2

sends blood to the lungs to remove CO2 and receive CO2

angio

blood vessels

aort/o

aorta

ather/o

fatty matter

pericardium

external protective membrane

epicardium

outer tissue of the heart

myocardium

middle layer of the heart

endocardium

inner layer of the heart

left atrium

blood in via pulmonary veins from the lungs

left ventricle

pumps oxygenated blood to the body through aorta

right atrium

blood in from the body via the vena cava

right ventricle

pumps low oxygen blood to the lungs through pulmonary arteries

pulmonary valve

right ventricle to pulmonary artery (to lungs)

aortic valve

left ventricle to aorta (to the body)

tricuspid valve

right atrium to right ventricle

mitral valve (bicuspid valve)

left atrium to left ventricle

stenosis

narrowing of the valves

regurgitation

backflow of blood due to uncomplete closure of a valve

prolapse

when leaflets of a valve do not close properly

sphygmomanometer

measures blood pressure in the arteries

systolic

contraction

diastolic

relaxation

hypertension

high blood pressure

hypotension

low blood pressure