Parts of the Heart
Receives oxygen poor blood from the vena cava
right atrium
This major vessel connected to the heart takes oxygenated blood out to the body
aorta
the pulmonary arteries deliver blood to where?
the lungs
What do coronary arteries do
supply heart muscle (myocardium) with blood
Name the two nodes of the heart
sinoatrial (SA) node
atrioventricular (AV) node
pumps oxygen rich blood out to the aorta
left ventricle
This major blood vessel brings oxygen poor blood into the heart
vena cava
Blood entering the aorta must go through this valve
aortic semilunar valve
What is atherosclerosis
blockage of coronary artery with cholesterol buildup
where is the SA node located
top of right atrium
thick middle layer of the heart made of cardiac muscle
myocardium
this major blood vessel brings oxygen rich blood from the lungs to the heart
pulmonary veins
Blood entering the pulmonary artery must go through this valve
pulmonary semilunar valve
what is thromboembolism
Blood clot causes blockage in a blood vessel
Where is the AV node located
bottom of right atrium
Thin inner layer of the heart made of simple squamous epithelium
endocardium
This major blood vessel brings oxygen poor blood from the heart to the lungs
pulmonary arteries
Blood from the vena cava empties into this part of the heart
right atrium
define hypertension
high blood pressure
which node causes the atria to contract
the SA
This valve separates the left atrium from the left ventricle
bicuspid valve
Give 2 methods veins use to return blood to the heart
gravity, one-way valves, and the skeletal muscle pump
Pulmonary veins deliver blood to where?
the left atrium
Give 2 treatments for blocked blood vessels
aspirin, ballon angioplasty, coronary bypass
the AV node sends signals down the AV bundle to the _________ fibers
Purkinje fibers