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20 Cards in this Set

  • Front
  • Back
Three fxns of the heart
1) generate blood pressure
2) routing blood
3) regulating blood supply
pulmonary circulation
flow of blood from the heart thru lungs, back to heart
systemic circulation
flow of blood from heart thru body back to heart
pericardium
fibrous pericardium and serous pericardium
fibrous pericardium
tough, fibrous CT anchoring the heart in the mediastinum
serous pericardium
simple squamous epithelium overlying loose CT and fat
pericardial fluid
produced by serous pericardium, reduces friction as heart moves within the pericardium
heart wall
epicardium, myocardium, endocardium
myocardium
middle layer of heart, responsible for contractions
epicardium
smooth, thin membrane
endocardium
allows blood to move easily thru the heart, - makes up the surface of the heart's inner chambers
superior vena cava, inferior vena cava
carry blood from the body to the right atrium
pulmonary veins
carry blood from the lungs to the left atrium
pulmonary trunk
arises from right ventricle, splits into right and left pulmonary arteries
aorta
arises from left ventricle - carries blood to rest of the body
Right atrium
3 major openings - superior vena cava, inferior vena cava receive blood from body, opening of coronary sinus receives blood from heart itself
Right ventricle
opens into pulmonary trunk
left ventricle
opens into aorta
atrioventricular valve (AV)
tricuspid valve, between right atrium/ventricle, also, bicuspid valave between left atrium/ventricle
semilunar valave
located at base of large blood vessels carrying blood away from ventricles