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A&P II Test 3 Questions

Terms in this set (42)

Blood Flow is ________ proportional to a change in blood pressure between two points (P1-P2=^P)
Directly
Blood flow (F) is _____ proportional to peripheral resistance (R).
Inversely
The units to express blood pressure are...
millimeters of mercury (mmHg)
The pressure that propels blood throughout the cardiac cycle is...
mean arterial pressure
The equation DP + 1/3(SP-DP) where DP is diastolic pressure and SP is systolic pressure, is used to determine...
mean arterial pressure
The ability of a tissue to regulate its own blood supply occurs through...
autoregulation
With decreased blood pressure the baroreceptors send______ signals to vasomotor center.
fewer
With decreased blood pressure the vasomotor center responds to input from the baroreceptors be sending_____ signals to arterioles.
more
With decreased blood pressure the arterioles respond to input from the vasomotor center by undergoing...
vasoconstriction
With decreased blood pressure the cardio-accelerator center responds to input from the baroreceptors by sending_____ signals to the heart.
more
With decreased blood pressure the cardio-inhibitor center responds to input from the baroreceptors by sending____ signals to the heart.
fewer
With decreased blood pressure the heart responds to input from the cardio-accelerator and cardio-inhibitor centers by___ cardiac output.
increasing
Oxygen (O2) and nutrients move out of the blood by...
diffusion
Which of the following pressures act together in filtration at capillaries?
blood hydrostatic pressure and interstitial fluid osmotic pressure
The percentage of erythrocytes in whole blood is...
hematocrit
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