by Darren Salmi, MD, MS

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    00:01 Now let's take a look at the palate.

    00:06 Here we see the hard palate which is composed of bone largely by the maxilla and then posteriorly by the palatine bone.

    00:15 And then posterior to the hard palate is the soft palate which lacks bone.

    00:22 There are some muscles though found in the soft palate.

    00:26 We have the palatoglossus going between the soft palate and the tongue, then the palatopharyngeus going from the palate to the pharynx.

    00:36 We also have some muscles more superiorly, such as the levator veli palatini, and the tensor veli palatini.

    00:46 We also have the musculus uvulae, which is the muscle that's found in the uvula.

    00:54 Most of these are going to be supplied by the vagus nerve or cranial nerve X with the exception of the tensor veli palatini, which is innervated by the mandibular nerve, or cranial nerve V3.

    01:08 Here in a sagittal view, we see the hard palate and in the mucosa, that overlays the hard palate has a lot of palatine glands, and then the soft palate terminates in the uvula.

    01:22 We have these arches formed by these muscles that we just described, such as the palatoglossal arch formed by palatoglossus and the palatopharyngeal arch formed by the palatopharyngeus.

    01:36 In between these two arches is where we find the palatine tonsil.

    01:41 And these are the tonsils people typically think about when you have tonsillitis, although there are other tonsils throughout the oral cavity and pharnyx.

    01:50 We take an inferior view of the palate, we can see some of the blood vessels and nerves.

    01:57 More anteriorly, over the maxillary portion, we have the greater palatine artery and more posteriorly over the palatine bone area, we have the lesser palatine artery.

    02:08 Similarly, we have the greater palatine nerve over the anterior portion and the lesser palatine nerve over the posterior portion.

    About the Lecture

    The lecture Palate by Darren Salmi, MD, MS is from the course Upper Aerodigestive Tract.

    Included Quiz Questions

    1. Mandibular nerve
    2. Vagus nerve
    3. Chorda tympani
    4. Hypoglossal nerve
    5. Maxillary nerve
    1. Anterior
    2. Posterior
    3. Lateral
    4. Medial
    5. Inferior

    Author of lecture Palate

     Darren Salmi, MD, MS

    Darren Salmi, MD, MS

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