Anatomy of the Tongue and Palate

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Questions and Answers

Which nerve is responsible for the innervation of the palatoglossus muscle?

  • Vagus nerve (X) (correct)
  • Mandibular nerve (V3)
  • Hypoglossal nerve (XII)
  • Trochlear nerve (IV)

Which bony structure forms the floor of the oral cavity?

  • Sphenoid bone
  • Maxillae
  • Mylohyoid muscle (correct)
  • Palatine bones

What are the two parts of the palatine bone that contribute to the roof of the oral cavity?

  • Pterygoid processes and spines
  • Horizontal plate and pyramidal process (correct)
  • Styloid process and inferior aspect of the petrous part
  • Alveolar and palatine processes

What is the function of the tensor veli palatini muscle?

<p>Tensing the soft palate (B)</p> Signup and view all the answers

Which bones form the anterior two-thirds of the hard palate?

<p>Two palatine processes (B)</p> Signup and view all the answers

What is the function of the muscles associated with the styloid process and inferior aspect of the petrous part of the temporal bone?

<p>Associated with the soft palate (C)</p> Signup and view all the answers

What forms the anterior three-quarters of the hard palate?

<p>Maxillae (D)</p> Signup and view all the answers

What is the function of the hard palate?

<p>Separates the oral cavity from the nasal cavities (A)</p> Signup and view all the answers

What is the name of the small oval elevation at the anterior end of the palatine raphe?

<p>Incisive papilla (D)</p> Signup and view all the answers

What is the name of the bone that consists of a body and two rami?

<p>Mandible (C)</p> Signup and view all the answers

What is the name of the small U-shaped bone in the neck?

<p>Hyoid bone (A)</p> Signup and view all the answers

What is the name of the folds present on the mucosa of the hard palate?

<p>Palatine rugae (B)</p> Signup and view all the answers

What is the collective term for the nodules of lymphoid tissue in the submucosa of the pharyngeal surface of the tongue?

<p>Lingual tonsil (D)</p> Signup and view all the answers

What is the function of the intrinsic muscles of the tongue?

<p>To change the shape of the tongue for speech, eating, and swallowing (C)</p> Signup and view all the answers

What is the median structure that separates the tongue into left and right halves?

<p>Median sagittal septum (A)</p> Signup and view all the answers

What is the nerve that innervates the palatoglossus muscle?

<p>Vagus nerve (X) (A)</p> Signup and view all the answers

What is the purpose of the extrinsic muscles of the tongue?

<p>To protrude, retract, depress, and elevate the tongue (B)</p> Signup and view all the answers

What is the characteristic of the pharyngeal surface of the tongue?

<p>It is irregular in contour due to lymphoid tissue (C)</p> Signup and view all the answers

What is the primary function of the genioglossus muscle?

<p>Depresses the central part of the tongue and causes it to protrude (A)</p> Signup and view all the answers

Which nerve innervates the styloglossus muscle?

<p>Hypoglossal nerve [XII] (D)</p> Signup and view all the answers

What is the main function of the palatoglossus muscle?

<p>Elevates the tongue and moves the palatoglossal arch toward the midline (D)</p> Signup and view all the answers

What is the primary artery that supplies the tongue?

<p>Lingual artery (B)</p> Signup and view all the answers

Where does the lymph from the oral part of the tongue drain directly?

<p>Deep cervical nodes (B)</p> Signup and view all the answers

What is the function of the soft palate?

<p>Acts as a valve to separate the nasopharynx from the oropharynx (C)</p> Signup and view all the answers

What is the function of the Tensor veli palatini muscle?

<p>Tenses the soft palate and opens the pharyngotympanic tube (C)</p> Signup and view all the answers

Which nerve is responsible for the innervation of the Levator veli palatini muscle?

<p>Vagus nerve (X) (A)</p> Signup and view all the answers

What is the function of the Palatopharyngeus muscle?

<p>Depresses the palate and moves the palatopharyngeal arch toward the midline (C)</p> Signup and view all the answers

Which muscle is responsible for elevating and retracting the uvula?

<p>Musculus uvulae (C)</p> Signup and view all the answers

Where is the superficial part of the submandibular gland located?

<p>Outside the oral cavity, against the submandibular fossa (C)</p> Signup and view all the answers

What is the function of the Palatoglossus muscle?

<p>Depresses the palate and moves the palatoglossal arch toward the midline (C)</p> Signup and view all the answers

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