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Questions and Answers
Which bones form the hard palate?
Which bones form the hard palate?
Where is the incisive fossa located?
Where is the incisive fossa located?
What is the main action of the musculus uvula?
What is the main action of the musculus uvula?
Which muscle inserts into the soft palate?
Which muscle inserts into the soft palate?
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What is the innervation of the tensor veli palatini muscle?
What is the innervation of the tensor veli palatini muscle?
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Which nerve exits the greater palatine foramen and courses along the hard palate?
Which nerve exits the greater palatine foramen and courses along the hard palate?
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Where does the lesser palatine nerve exit and course to?
Where does the lesser palatine nerve exit and course to?
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What is the arterial supply of the hard and soft palate?
What is the arterial supply of the hard and soft palate?
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What is the main action of the levator veli palatini muscle?
What is the main action of the levator veli palatini muscle?
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Which cranial nerve innervates all the muscles of the soft palate except the tensor veli palatini?
Which cranial nerve innervates all the muscles of the soft palate except the tensor veli palatini?
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Which artery passes through the lesser palatine foramen to supply the soft palate?
Which artery passes through the lesser palatine foramen to supply the soft palate?
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Which nerve innervates all the intrinsic muscles of the tongue except the palatoglossus muscle?
Which nerve innervates all the intrinsic muscles of the tongue except the palatoglossus muscle?
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Which nerve innervates the palatoglossus muscle?
Which nerve innervates the palatoglossus muscle?
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Which nerve innervates the anterior 2/3 of the tongue for general sensation?
Which nerve innervates the anterior 2/3 of the tongue for general sensation?
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Which nerve innervates the posterior 1/3 of the tongue for general sensation?
Which nerve innervates the posterior 1/3 of the tongue for general sensation?
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Which nerve innervates the anterior 2/3 of the tongue for taste?
Which nerve innervates the anterior 2/3 of the tongue for taste?
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Which nerve innervates the posterior 1/3 of the tongue for taste?
Which nerve innervates the posterior 1/3 of the tongue for taste?
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Which artery supplies the lingual artery and lingual vein?
Which artery supplies the lingual artery and lingual vein?
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Which nerve supplies the inferior (mandibular) alveolar arch?
Which nerve supplies the inferior (mandibular) alveolar arch?
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Which nerve supplies the superior (maxillary) alveolar arch?
Which nerve supplies the superior (maxillary) alveolar arch?
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Study Notes
Hard Palate Anatomy
- The hard palate is formed by the maxilla and palatine bones.
- The incisive fossa is located in the midline of the anterior hard palate, between the central incisors.
Muscles of the Soft Palate
- The main action of the musculus uvula is to shorten and elevate the uvula during swallowing.
- The levator veli palatini muscle primarily elevates the soft palate to close off the nasopharynx during swallowing.
- The tensor veli palatini muscle is innervated by the mandibular nerve (V3) of the trigeminal nerve.
Nerve and Vascular Supply
- The greater palatine nerve exits the greater palatine foramen and courses along the hard palate, providing sensory innervation.
- The lesser palatine nerve exits through the lesser palatine foramen, supplying the soft palate and tonsillar region.
- The arterial supply of the hard and soft palate primarily comes from the maxillary artery, including the greater and lesser palatine branches.
- The artery passing through the lesser palatine foramen to supply the soft palate is the lesser palatine artery.
Tongue Innervation
- All intrinsic muscles of the tongue, except the palatoglossus, are innervated by the hypoglossal nerve (CN XII).
- The palatoglossus muscle is innervated by the vagus nerve (CN X).
- The anterior two-thirds of the tongue receives general sensation from the lingual nerve, a branch of the mandibular nerve (V3).
- The posterior one-third of the tongue is innervated for general sensation by the glossopharyngeal nerve (CN IX).
- The chorda tympani, a branch of the facial nerve (CN VII), innervates the anterior two-thirds of the tongue for taste.
- Taste sensation for the posterior one-third of the tongue is provided by the glossopharyngeal nerve (CN IX).
Alveolar Arch Innervation
- The inferior (mandibular) alveolar arch is supplied by the inferior alveolar nerve, a branch of the mandibular nerve (V3).
- The superior (maxillary) alveolar arch is supplied by the superior alveolar nerves, branches of the maxillary nerve (V2).
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Description
Test your knowledge on the structures of the oral cavity and palate, including the hard and soft palate, tongue, teeth, and sublingual gland. Learn about the anatomy and functions of these important structures.
