The figure illustrates the parasympathetic division. What does "C" represent?
A. Terminal ganglia
B. Pelvic splanchnic nerves
C. Postganglionic neurons
D. Cranial nerves
E. Preganglionic neurons
Answer: A
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Which statement regarding sensory reception is correct?
A) The larger the receptive field, the better is one's ability to localize a stimulus. B) The CNS can tell the difference between a "true" sensation and a "false" one. C) Output from higher centers can dampen receptor sensitivity. D) The CNS interprets the nature of sensory information entirely on the basis of the area of the brain stimulated. E) In general, the stronger the stimulus, the lower the frequency of action potentials.
Angiotensin II stimulates the secretion of which hormone from the adrenal cortex?
a) adrenocorticotropic hormone b) aldosterone c) cortisol d) epinephrine
Answer the following questions true (T) or false (F)
1. Vesicles known as melanosomes are taken into the cytosol of keratinocytes by endocytosis. The melanosome is transported to the superficial side of the keratinocyte to shield its nucleus. 2. Carotene and hemoglobin are two pigments that contribute to skin color in minor ways. 3. Hairs grow from cells in the matrix of the root that are still undergoing keratinization.
A reflex in which the sensory input and motor output are on opposite sides of the spinal cord, is called a(n) ________ reflex arc.
A. contralateral B. monosynaptic C. intersegmental D. ipsilateral E. polysynaptic