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,4/9/26, 9:43 AM CVP Exam 2
_ _______ is the flow of blood from the periphery back to the right atrium
venous return
venous return is the major determinant of _______ , because the heart cannot pump
more blood than it receives
cardiac output
what is the primary force driving venous return?
the difference between venous pressure and R atrial pressure
factors that ______ venous pressure or ______ right atrial pressure facilitate venous
return
increase
decrease
_ ___________ is a physiological mechanism where the skeletal muscles surrounding
veins in the arms and legs facilitate the return of blood to the heart
skeletal muscle pump
veins of the SMP contain _____ valves that force blood back to the heart
one-way
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,4/9/26, 9:43 AM CVP Exam 2
during skeletal muscle pump, muscles ___ , forcing blood back to the heart. when
muscles relax, valves prevent backflow
contract
during inspiration, the diaphragm moves down, expanding the thoracic cavity and
_ ____ intra-thoracic pressure
decreasing
decreased intra-thoracic pressure as a result of the respiratory pump causes
______ right atrial pressure and abdominal pressure
decreased
increased
the _____ pump functions to squeeze blood upward through the IVC
respiratory
_ _______ is a physiological mechanism that facilitates venous return by utilizing the
pressure changes that occur in the thoracic and abdominal cavities during the
breathing cycle
respiratory pump
prolonged standing may cause _________in the legs if pressure cannot overcome
gravity
venous pooling
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, 4/9/26, 9:43 AM CVP Exam 2
venous pooling in the legs may cause ________
fainting
the myocardium receives blood from the R & L _____ arteries
coronary
R & L coronary arteries are direct branches off the _______
aorta
blood flow decreases during _______
systole
blood flow increases during _______
diastole
systole= _________
contraction
diastole = ________
relaxation
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