Sympathetic preganglionic fibers are ________ and have ________ axons
A) short; myelinated
B) short; unmyelinated
C) long; myelinated
D) long; unmyelinated
E) intermediate; small
A
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Which is TRUE about the muscle fibers found in a muscle spindle?
A. Their contraction is stimulated by alpha motor neurons and inhibited by gamma motor neurons. B. When stimulated to fire, they always inhibit flexor muscles. C. They function to maintain tension on spindle receptors. D. They are not true muscle fibers because they cannot contract. E. They are innervated by alpha motor neurons.
______________________ is the reproductive strategy of all Pacific salmon that breed only once and die shortly after
Fill in the blank with the correct word.
What is a possible cause of Ondine's curse?
A. Emphysema B. Smoking C. Poliomyelitis D. Tuberculosis E. Asthma
Which of the following is not a function of the digestive system?
A) mechanical processing B) absorption C) compaction D) ingestion E) filtration