Resistance to blood flow is greatest in
A. arteries.
B. arterioles.
C. venules.
D. veins.
E. capillaries.
B
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The body is able to produce and recycle vitamin A (retinol) as needed.
Answer the following statement true (T) or false (F)
When the popliteal vein reaches the popliteal fossa, it becomes the ________ vein
A) femoral B) posterior tibial C) internal iliac D) external iliac E) fibular
Viagra is used to treat erectile dysfunction by prolonging the effects of ________ on blood vessels.
A. nitric oxide (NO) B. GABA C. substance P D. dopamine
Our sense of static equilibrium is created by the ________
A) vibration of the tympanic membrane B) movement of otoliths along hair cells C) transmission of light through the lens D) sound waves traveling through the cochlea E) stimulation of hair cells in the spiral organ of Corti