Which of these facts about the spinal cord is (are) correct?
A) There are 12 pairs of spinal nerves that exit the spinal cord.
B) The spinal cord extends inferiorly to the level of the fifth lumbar vertebra.
C) The spinal cord is anchored to the coccyx by the filum terminale.
D) Gray matter is superficial to the white matter of the spinal cord.
E) all of these
Answer: C) The spinal cord is anchored to the coccyx by the filum terminale.
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An incoming pathway for subconscious information derived from the internal viscera is called a(n) ____________________, whereas an incoming pathway for information propagated to the conscious levels of the brain is called a(n) ____________________
Fill in the blank(s) with correct word
Increased activity in the cells of the ventral respiratory group of the medullary respiratory center is expected to produce
A. increases in the contraction of the external intercostals muscles. B. increases in the contraction of the internal intercostals muscles. C. increased contraction of the abdominal muscles. D. All of these changes. E. no change in breathing whatever.
When indirect signaling is used, the target cell responds to the signal when that chemical
A) Binds to an enzyme. B) Binds to a receptor. C) Binds to a gene. D) Binds to the nuclear membrane.
A ________ is a large, heavily branched neuron with a pear-shaped soma and numerous large dendrites running out into the gray matter of the cerebellum.
Fill in the blank(s) with the appropriate word(s).