Cardiovascular Anatomy--Heart--- Chambers of the heart Flashcards
the chambers of the heart are divided into __________ cavities
four
the right and left chambers are separated by a ________________
septum
the atria are the two ________________ chambers
superior (upper)
the atria are also known as
“____________ _____________” since they receive blood from the ______________
receiving chambers
veins
the atria ___________ to receive blood and then __________________ to push the blood into ventricles
relax
contract
the myocardial wall of each atrium is not very thick, since little ___________________ is needed to move blood from the atria to the ventricles
pressure
the ____________________ are earlike flaps protruding from each atrium
auricles
the ventricles are the two _______________ chambers
lower (inferior)
the ventricles are also known as the
“___________ ______________” since they push blood into a large network of vessels that go all over the body
pumping chambers
the ventricular myocardium is ________________ than the myocardium of the atria, since great force must be generated to pump the blood a large distance
thicker
the myocardium of the left ventricle is thicker than the myocardium of the right ventricle because the left ventricle pushes blood to the entire _____________
body
the right ventricle pushes blood to the ____________
lungs
