All of the following provide pressure gradients for venous blood flow EXCEPT
A) contraction of skeletal muscles
B) respiratory movements
C) contraction of muscle in vessel walls
D) contraction of the valves in veins
Correct Answer:
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Q24: Which one of the following is true
Q25: When chemoreceptors detect an increase in hydrogen
Q26: When baroreceptors are stretched due to a
Q27: Pressure during ventricular contraction is called _
Q28: If an individual has a systolic pressure
Q30: Blood pressure (hydrostatic pressure)decreases in the sequence
A)
Q31: When blood pressure decreases,the kidneys secrete
A) angiotensin
B)
Q32: If all other factors remain constant,an increase
Q33: Any factor,such as polycythemia or an increase
Q34: Most of the pressure that moves blood
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