Efferent neurons of the
A. somatic motor nerves innervate smooth muscle.
B. ANS innervate skeletal muscle.
C. somatic motor nerves connect skeletal muscles to the chain ganglia of the spinal cord.
D. ANS utilize one neuron to connect the CNS to the effector organ.
E. ANS utilize two neurons in series to connect the CNS to the effector.
E
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Which of the following factors of the internal environment is not homeostatically maintained?
a. its concentration of nutrient molecules. b. its concentration of nitrogen gas, of which 80% of the atmospheric air is composed. c. its concentration of oxygen and carbon dioxide. d. its pH. e. its temperature.
What specific part of the neuron communicates with a target cell and serves as the secretory region of the cell?
A) cell body B) dendrites C) myelin sheath D) axon terminals (synaptic knobs)
How many chromosomes do each sperm and each ovum have?
A) 23 pairs of chromosomes B) 23 chromosomes C) 46 pairs of chromosomes D) 46 chromosomes E) 2n chromosomes
Gonadocorticoid(s) ________.
A) synthesized by the adrenal medulla are primarily androgens B) production by the adrenal gland is insignificant compared with sex hormone release from the gonads during late puberty C) secretion inhibition is highly dependent on a negative feedback loop involving ACTH D) hypersecretion can result in adrenogenital syndrome, also called feminization