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Biomedical and Dental Sciences Flashcards

7 cards from real DMD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Biomedical and Dental Sciences flashcards as text

  1. A patient reports numbness of the buccal gingiva adjacent to the mandibular molars only. Which nerve is most likely affected?

    Answer: Long buccal nerve

    The long (buccal) nerve of V3 supplies the buccal gingiva and mucosa of the mandibular molar region.

  2. Which suprahyoid muscle is innervated by the mandibular division of the trigeminal nerve?

    Answer: Anterior belly of digastric

    The anterior belly of digastric derives from the first pharyngeal arch and is supplied by the nerve to mylohyoid (V3).

  3. Postganglionic parasympathetic fibers that stimulate parotid secretion synapse in which ganglion?

    Answer: Otic ganglion

    Preganglionic fibers from CN IX travel via the lesser petrosal nerve to the otic ganglion, then reach the parotid via the auriculotemporal nerve.

  4. Taste sensation from the anterior two-thirds of the tongue is carried by which nerve?

    Answer: Chorda tympani (CN VII)

    Special taste fibers of the anterior two-thirds travel with the lingual nerve but belong to the chorda tympani of the facial nerve.

  5. The muscles of mastication are derived from which pharyngeal arch?

    Answer: First

    First-arch mesoderm forms the muscles of mastication, all innervated by V3.

  6. The maxillary division of the trigeminal nerve exits the middle cranial fossa through which opening?

    Answer: Foramen rotundum

    V2 passes through foramen rotundum into the pterygopalatine fossa.

  7. Lymph from the tip of the tongue drains primarily to which node group?

    Answer: Submental nodes

    The tongue tip drains to submental nodes, while lateral portions drain to submandibular nodes.