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Use the diagram pictured above to answer the following questions.
-Identify the letter that indicates the gaps between Schwann cells that are known as myelin sheath gaps (nodes of Ranvier) .
Q42: Contraction of the _ muscle wrinkles the
Q43: Cell bodies of preganglionic sympathetic neurons are
Q44: A depression on the posterior of the
Q47: Which relatively rare type of neuron has
Q50: Sleep-wake cycles are controlled by the pineal
Q63: The hair cells of the inner ear
Q67: Sensory fibers of which cranial nerve pair
Q89: Hypersecretion of glucocorticoid hormones leads to Cushing's
Q98: The three _ are bony structures involved
Q104: All of the following plexuses contain fibers