muscles of soft palate/ divisions of pharynx Flashcards
Origin and insertion of tensor veli palatini
origin: scaphoid fossa, entire length of fibrous part of auditory tube, spine of sphenoid
Insertion: palatine aponeurosis
Innervation of tensor veli palatini
V3 branch of medial pterygoid
action of tensor veli palatini
tense soft palate
open auditory tube
Origin and insertion of levator veli palatini
Origin: petrous part of the temporal bone anterior to carotid canal
Insertion: palatine aponeurosis
Innervation of levator veli palatini
CN X via pharyngeal plexus
action of the levator veli palatini
elevate soft palate
origin and insertion of palatopharyngeus
origin: palatine aponeurosis
insertion: pharyngeal wall
innervation of palatopharyngeus
CN X via pharyngeal plexus
action of palatopharyngeus
depress soft palate or elevate pharynx
narrow fauces
Origin and insertion of palatoglossus
origin: palatine aponeurosis
insertion: lateral tongue
innervation of palatoglossus
CN X via pharyngeal plexus
action of palatoglossus
depress soft palate or elevate rear of tongue
narrow fauces
Origin and insertion musculus uvulae
origin: central posterior hard palate (posterior nasal spine)
insertion: uvula
Innervation of musculus uvulae
CN X via pharyngeal plexus
action of musculus uvulae
thickens central soft palate
shortens uvula
What is the GSA innervation of the nasopharynx?
CN V2-maxillary
CN IX- glossopharyngeal
What is the GSA innervation of the oropharynx?
CN IX - glossopharyngeal
What is the GSA innervation of the laryngopharynx?
CN X - Vagus
What structures/spaces are present in the nasopharynx?
- choanae, 2. pharyngeal tonsil, 3. pharyngeal recess, 4. torus tubarius/auditory tube opening, 5. salpingopharyngeal fold
What structures/spaces are present in the oropharynx?
- soft palate/uvula/palatopharyngeal folds
2. palatoglossal folds
What structures/spaces are present in the laryngopharynx?
- epiglottis, 2. aryepiglottic folds, 3. laryngeal inlet, 4. mucosa over arytenoid cartilages, 5. posterior aspect of cricoid carilage (lamina), 6. piriform recesses