Mastication, Oral Cavity, Larynx

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Oral Cavity Quizzes & Trivia

This quiz will test your knowledge over muscles and innervations that involve the function of Mastication, the floor of the Oral Cavity, and the Larynx. This quiz is designed for P. T. A students.

** In situations that require fill in the blank, all answers should be presented in lower case.


Questions and Answers
  • 1. 

    This muscle opens the jaw by pulling the mandible forward and is innervated by the Trigeminal nerve (V):

    Explanation
    The lateral pterygoid muscle is responsible for opening the jaw by pulling the mandible forward. It is innervated by the Trigeminal nerve (V).

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  • 2. 

    These three muscles are responsible for elevation of the mandible (closing of the jaw).*** When answering this question, be sure to place a comma between each answer with a space between words and all lowercase letters.. The answer may be presented in any order***

    Explanation
    medial pterygoid, temporalis, masseter is also acceptable. This website allows for limitied alternative answers. Sorry for the confusion if any.

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  • 3. 

    The ___________ elevates the hyoid bone, raises floor of mouth during swallowing and is innervated  by _____________ ?*** Answer should appear such as this (example only): frontalis, facial VII   ***

    Explanation
    The mylohyoid muscle elevates the hyoid bone and raises the floor of the mouth during swallowing. It is innervated by the trigeminal nerve (cranial nerve V).

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  • 4. 

    The ___________  elevates and draws hyoid bone forward and assists in depressing mandible. Is also innervated by ______________.*** Answer should appear such as this (example only): frontalis, facial VII  ***

    Explanation
    The geniohyoid muscle elevates and draws the hyoid bone forward, as well as assists in depressing the mandible. It is innervated by the hypoglossal nerve (XII).

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  • 5. 

    The ___________  elevates and retracts the hyoid bone and is innervated by ___________ .*** Answer should appear such as this (example only): frontalis, facial VII  ***

    Explanation
    The stylohyoid muscle elevates and retracts the hyoid bone. It is innervated by the facial nerve (VII).

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  • 6. 

    The _____________ elevates the hyoid bone, assists in depressing the mandible, and is innervated by _________________.*** Answer should appear such as this (example only): frontalis, facial VII  (if there are mor than one innervations then the nerves should be separated by "/" ****

    Explanation
    The digastric muscle elevates the hyoid bone and assists in depressing the mandible. It is innervated by both the trigeminal nerve (V) and the facial nerve (VII).

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  • 7. 

    Muscle and Nerve Innervation of the LarynxResponsible for stabilizing the hyoid bone and innervated by the hypoglossal XII:

    • A.

      Sternohyoid, Stylohyoid, Thyrohyoid, Omohyoid

    • B.

      Stylohyoid, Omohyoid, Mylohyoid, Stylothyroid

    • C.

      Sternohyoid, Sternothyoid,Thyrohyoid, Omohyoid

    • D.

      Sternohyoid, Stylothyoid, Sternothyroid, Thyrohoid

    • E.

      Omohyoid, Sternothyroid, ,Stylothyroid, mylohyoid

    Correct Answer
    C. Sternohyoid, Sternothyoid,Thyrohyoid, Omohyoid
    Explanation
    The muscles responsible for stabilizing the hyoid bone and innervated by the hypoglossal XII are the Sternohyoid, Sternothyroid, Thyrohyoid, and Omohyoid muscles. These muscles help to support and position the hyoid bone, which is important for swallowing and speech production. The hypoglossal nerve (cranial nerve XII) provides motor innervation to these muscles, allowing them to contract and perform their functions.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 22, 2010
    Quiz Created by
    Huffinestim

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