Heart Anatomy
The heart is located in this part of the chest
What is the MEDIASTINUM
Blood enters the right side of the heart by way of these two structures
What are the superior and inferior venae cavae
These electrically connects all the cardiac muscle fibers together
What are intercalated disks
These carry blood from the arterioles to the venules
What are capillaries
This type of circulation carries blood to and from the lungs
What is pulmonary circulation
This term means "discharging chambers"
What are VENTRICLES
Blood flows from the right atrium to the right ventricle through this valve
What is the TRICUSPID VALVE
This is another name for impulses
What are action potentials
These carry blood away from the heart
What are arteries
This type of circulation goes through the liver
What is hepatic portal circulation
This term means cardiac muscle tissue
What is MYOCARDIUM
Blood is pumped from the left ventricle through the semilunar valve to this structure
What is the AORTA
This is the pacemaker of the heart
What is the sinoatrial or SA node
This is the outer layer of arteries and veins
What is tunica externa
This type of circulation occurs before birth
What is fetal circulation
This is the two-layered sac that surrounds the heart
What is the PERICARDIUM
Blockage of blood flow through the coronary arteries is called what
What is a MYOCARDIAL INFARCTION (or heart attack)
These nerves are located in the septum of the ventricle
What is the AV bundle or bundle of His
This is the inner layer of arteries and veins
What is tunica intima
This type of circulation carries blood throughout the body
What is systemic circulation
This is the smooth inner lining of the heart chambers
What is ENDOCARDIUM
This surgery takes veins from other parts of the body to go around blockages in the heart
What is Coronary Bypass Surgery or Coronary Artery Bypass Graft (CABG)
These are located in the walls of the ventricles
What are Purkinje fibers
This is the middle layer of arteries and veins
What is tunica media
The path of circulation includes what missing part:
aorta, arteries, _________, capillaries, venules, venae cavae, right atrium
What are arterioles