Sympathetic fibers do not release ________
A) neuropeptide Y
B) substance P
C) nitric oxide (NO)
D) acetylcholine
E) norepinephrine
C
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If the stapedius muscle is unable to reduce movement of the ossicles as a unit, how is hearing affected?
A) We hear no sound. B) Hearing is not affected. C) Sounds will be softer than normal. D) Sounds will be louder than normal.
Which of the following is NOT a function of the spinal cord?
A. It carries sensory nerve action potentials from the sensory receptors to the brain. B. It carries motor nerve action potentials from the brain to the effectors. C. It interprets the sensory nerve action potentials as sensations. D. It serves as a reflex center.
The function of plasmin is to
A. control osmotic pressure of the blood. B. promote the formation of plasma. C. promote platelet plug formation. D. hydrolyze fibrin. E. activate factor XII.
After death, muscle fibers run out of ATP and calcium begins to leak from the sarcoplasmic reticulum into the sarcoplasm. This results in a condition known as
A) Tetany. B) Treppe. C) Depolarization. D) Rigor mortis. E) Oxygen debt.