Pharynx, Nasal Cavities, and Palate - Checked - Review Important points with Lecture Flashcards
Name 3 constrictors of the Pharynx
1) superior pharyngeal constrictor
2) middle pharyngeal constrictor
3) inferior pharyngeal constrictor
What nerves innervate the pharyngeal constrictors?
Pharyngeal plexus, namely:
glossopharyngeal (CN IX) and vagal (CN X)
Also postganglionic sympathetic fibers from the superior cervical ganglion.
Name 3 longitudinal elevators
1) stylopharyngeus muscle
2) salpingopharyngeus muscle
3) palatopharyngeus muscle
What innervates the stylopharyngeus muscle?
Glossopharyngeal Nerve
What innervates the salpingopharyngeus and palatopharyngeus muscles?
Vagus
Define choanae
Communication between nasal cavity and nasopharynx
Define fauces
Communication between oral cavity and oropharynx
Define the torus tubarius
Cartilage surrounding the outside of the auditory tube
Which muscles elevate the soft palate and uvula during swallowing?
** Tensor veli palatini**
Levator veli palatini
**Musculus uvulae **
Which nerve innervates tensor veli palatini?
Trigeminal
Which nerve innervates levator veli palatini and musculus uvulae?
Vagus
Which tonsils can be seen when patient opens mouth wide?
Palatine tonsils
Which muscle spans from the soft palate to the tongue?
Palatoglossus muscle
Which muscle spans from the soft palate to the epiglottis?
Palatopharyngeus
Which nerves primarily innervate the palate?
** greater and lesser palatine nerves (CN V)**
What are the 4 major arteries supplying the pharynx and palate.
Lingual artery
Maxillary artery
Facial artery
Ascending pharyngeal artery
Name the branches of major pharynx/palate arteries
Pharyngeal artery has palatine branch
Maxillary artery has greater and lesser palatine branches
Facial artery has ascending palatine branch
Lingual artery has dorsal and deep lingual branches
Name 5 passages into the nasal cavity.
1) Nares
2) Cribriform Plate
3) Incisive canal - transmits nasopalatine nerve and greater palatine artery
**4) Small foramina in lateral wall **
5) Sphenopalatine foramen
Which nerves supply the nasal, palatine, and oral regions?
trigeminal
facial
glossopharyngeal
** vagus**
accessory
**cervical sympathetic trunk. **
What are the principle nerves of the palate?
** Greater and lesser palatine nerves via greater palatine canal **
What does the glossopharyngeal nerve innervate?
posterior onethird of the tongue, the tonsillar area, and pharynx and also supplies taste fibers for the posterior one-third of the tongue
What does the vagus nerve innervate?
** Taste buds of the epiglottis, visceral sensory innervation of the pharyngeal mucosa and muscular innervation of the soft palate. **
How do veins drain from pharynx/palate?
** Drain into the pterygoid plexus of veins and have connections with the dural sinuses**
List the paranasal sinuses
frontal
ethmoid
maxillary
sphenoid
