What small involuntary muscle is attached to the underside of a hair follicle?
a. arrector pili
b. hair bulb
c. dermal papilla
d. hair strand
Select your answer:
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Cell & Bond › ViewDuring exercise, total peripheral resistance (TPR) decreases because of the effect of
A. the sympathetic nervous system on splanchnic arterioles
B. the parasympathetic nervous system on skeletal muscle arterioles
C. local metabolites on skeletal muscle arterioles
D. local metabolites on cerebral arterioles
Macromolecules and Enzymes › View
This macromolecule is a long-term energy source, especially when sugars are not avaliable.
A. Carbohydrates
B. Lipids
C. Nucleic Acids
D. Proteins