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Primary motor innervation to the larynx and velum is provided by which cranial nerve? A.V B.VII C.IX D.X - Option (D) is correct. Primary innervation to the larynx and velum is provided by cranial nerve X, the vagus nerve. The other answer choices identify cranial nerves that are not primarily involved in motor innervation to the larynx and velum. A client exhibits weakness, atrophy, and fasciculations of the right side of the tongue and lower face. The client also has right vocal-fold w...