Anatomy of Glossopharyngeal Nerve Quiz
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Questions and Answers

What separates the oral cavity into the oral vestibule and the oral cavity proper?

  • Lateral walls
  • Roof and floor
  • Upper and lower dental arches (correct)
  • Muscular diaphragm

Which muscle forms the skeletal muscle within the cheeks?

  • Buccinator muscle (correct)
  • Superior constrictor muscle
  • Geniohyoid muscle
  • Mylohyoid muscle

What fills the U-shaped gap between the left and right sides of the body of the mandible?

  • Geniohyoid muscles
  • Mylohyoid muscles (correct)
  • Tongue
  • Buccinator muscles

Which structure is superior to the geniohyoid muscles in the oral cavity?

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

What is the anterior opening of the oral cavity called?

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

To what structure does the oropharyngeal isthmus open into?

<p>Oral part of the pharynx (A)</p> Signup and view all the answers

The glossopharyngeal nerve emerges from which part of the brain?

<p>The medulla oblongata (B)</p> Signup and view all the answers

Which arteries does the glossopharyngeal nerve cross to reach the tongue?

<p>Internal and external carotid arteries (A)</p> Signup and view all the answers

The glossopharyngeal nerve leaves the skull through which foramen?

<p>Jugular foramen (A)</p> Signup and view all the answers

Which muscle depresses the soft palate and moves the palatopharyngeal arch toward the midline?

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

Which artery continues through the greater palatine foramen onto the inferior surface of the hard palate?

<p>Greater palatine artery (A)</p> Signup and view all the answers

Into which network of veins does the venous drainage of the palate drain?

<p>Pterygoid plexus of veins (A)</p> Signup and view all the answers

The greater palatine nerve supplies which part of the palate as far as the first premolar?

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

Which nerve passes posteromedially to supply the soft palate?

<p>Lesser palatine nerve (D)</p> Signup and view all the answers

Which artery supplies vessels to the molars and premolars through small canals in the bone?

<p>Superior alveolar artery (D)</p> Signup and view all the answers

The anterior superior alveolar artery originates from which artery in the infra-orbital canal?

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

Which branch of the maxillary artery supplies vessels to the chin?

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

Which muscle elevates the soft palate above its neutral position?

<p>Levator veli palatini (D)</p> Signup and view all the answers

Which nerve innervates the mylohyoid muscle?

<p>Inferior alveolar nerve (A)</p> Signup and view all the answers

What is the action of the geniohyoid muscle?

<p>Elevates hyoid bone (C)</p> Signup and view all the answers

Which papillae contain taste buds?

<p>Fungiform papillae (A)</p> Signup and view all the answers

Where are vallate (circumvallate) papillae located?

<p>Posterior surface of the tongue (A)</p> Signup and view all the answers

Which nerve provides parasympathetic innervation to increase saliva secretion?

<p>Chorda tympani nerve (C)</p> Signup and view all the answers

What is the action of the superior longitudinal muscle of the tongue?

<p>Shortens tongue; curls apex and sides of tongue (B)</p> Signup and view all the answers

What is the location of the sublingual gland?

<p>Medial surface of the mandible (sublingual fossa) (B)</p> Signup and view all the answers

Which muscle originates from the superior mental spines?

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

Which nerve loops under the submandibular duct?

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

What structures pass through the triangular aperture?

<p>Hyoglossus, styloglossus, lingual nerve, hypoglossal nerve (B)</p> Signup and view all the answers

Why does local infiltration not work in the adult mandible?

<p>Because of the dense cortical bone (A)</p> Signup and view all the answers

Which nerve provides general sensation from the anterior two-thirds of the tongue?

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

What is the method for performing a mental/incisive nerves block?

<p>Inserting the needle into the mucosa between the medial border of the mandibular ramus and the maxillary tuberosity (A)</p> Signup and view all the answers

What is the function of hypoglossal nerve?

<p>Motor innervation to the tongue muscles (A)</p> Signup and view all the answers

Where does the hypoglossal nerve emerge from?

<p>Medulla oblongata (B)</p> Signup and view all the answers

What areas are anesthetized by an inferior alveolar nerve block?

<p>All buccal gingiva and mucosa from the premolars to the midline (D)</p> Signup and view all the answers

What is the main function of sympathetic innervation for submandibular and sublingual glands?

<p>Decrease saliva secretion mainly by vasoconstriction (C)</p> Signup and view all the answers

Which nerve is joined by the chorda tympani nerve?

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

How is maxillary anesthesia typically performed?

<p>Local infiltration (A)</p> Signup and view all the answers

Which muscle originates from the styloid process?

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

What is a characteristic of sublingual gland?

<p>Ducts open onto the crest of sublingual fold (B)</p> Signup and view all the answers

What is a characteristic of submandibular gland?

<p>Opens into: sublingual caruncle (papilla) beside base of frenulum of tongue (A)</p> Signup and view all the answers

What is involved in a field block for anesthesia?

<p>Injecting tissue immediately around surgical site (A)</p> Signup and view all the answers

What causes transient, dental-induced Bell’s palsy during anesthesia?

<p>Placement of needle too far posteriorly in parotid bed and introduction of anesthetic close to facial nerve (B)</p> Signup and view all the answers

Which artery supplies the lingual gingiva of the tongue?

<p>Lingual artery of the tongue (C)</p> Signup and view all the answers

From which nerve does the mental branch originate?

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

Which nerve innervates the molar teeth?

<p>Posterior superior alveolar nerve (D)</p> Signup and view all the answers

Where does the middle superior alveolar nerve originate from?

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

What defines the lateral margins of the oropharyngeal isthmus?

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

Which gland secretes saliva right before or during eating?

<p>Parotid gland (B)</p> Signup and view all the answers

Which muscle defines the lateral margins of the oropharyngeal isthmus?

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

Which nerve supplies sensory innervation to the parotid gland?

<p>Glossopharyngeal nerve (B)</p> Signup and view all the answers

Which relation of the parotid gland is in contact with the sternocleidomastoid muscle?

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

Which duct penetrates the buccinator muscle before opening into the oral cavity?

<p>Parotid duct (Stensen duct) (B)</p> Signup and view all the answers

Which lobe of the parotid gland does the facial nerve pass through?

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

Which vessel runs through the parotid gland?

<p>External carotid artery and its branches (B)</p> Signup and view all the answers

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