Question 18 / 22:  Our facial and pharyngeal muscles are derived from the muscles of the embryonic gill arches. Are there any other examples?
A.  No, there are not any other branchiomeric (gill) arch muscles.
B.  Yes, the tensor palatini, stapedius, splenius capitis longus and the intrinsic muscles of the
larynx are also branchiomeric.
C.  Yes, the cricothyroid, muscles of mastication, tensor tympani, stapedius and the intrinsic
muscles of the larynx are also branchiomeric.
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Explanation:

Other muscles of mastication innervated by the neurons in the motor nucleus of V are the masseter, the temporalis, and the medial pterygoid. (Also, the nerve to the mylohyoid innervates the anterior belly of the digastric and the mylohoid.)

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Ch 04: Spinal Cord General Anatomy & Brain Stem

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Attribution:  Stephen C. Voron, M.D., Suzanne S. Stensaas, Ph.D. , Department of Neurobiology and Anatomy, University of Utah, School of Medicine, Salt Lake City, Utah 84132, http://library.med.utah.edu/kw/hyperbrain
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Dionne Mahaffey
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