Pharynx, Nasal Cavities, and Palate - Checked - Review Important points with Lecture

Question 1

Name 3 constrictors of the Pharynx

Answer 1

1) superior pharyngeal constrictor

2) middle pharyngeal constrictor

3) inferior pharyngeal constrictor

Question 2

What nerves innervate the pharyngeal constrictors?

Answer 2

Pharyngeal plexus, namely:

glossopharyngeal (CN IX) and vagal (CN X)

Also postganglionic sympathetic fibers from the superior cervical ganglion.

Question 3

Name 3 longitudinal elevators

Answer 3

1) stylopharyngeus muscle

2) salpingopharyngeus muscle

3) palatopharyngeus muscle

Question 4

What innervates the stylopharyngeus muscle?

Answer 4

Glossopharyngeal Nerve

Question 5

What innervates the salpingopharyngeus and palatopharyngeus muscles?

Answer 5

Vagus

Question 6

Define choanae

Answer 6

Communication between nasal cavity and nasopharynx

Question 7

Define fauces

Answer 7

Communication between oral cavity and oropharynx

Question 8

Define the torus tubarius

Answer 8

Cartilage surrounding the outside of the auditory tube

Question 9

Which muscles elevate the soft palate and uvula during swallowing?

Answer 9

** Tensor veli palatini**

Levator veli palatini

**Musculus uvulae **

Question 10

Which nerve innervates tensor veli palatini?

Answer 10

Trigeminal

Question 11

Which nerve innervates levator veli palatini and musculus uvulae?

Answer 11

Vagus

Question 12

Which tonsils can be seen when patient opens mouth wide?

Answer 12

Palatine tonsils

Question 13

Which muscle spans from the soft palate to the tongue?

Answer 13

Palatoglossus muscle

Question 14

Which muscle spans from the soft palate to the epiglottis?

Answer 14

Palatopharyngeus

Question 15

Which nerves primarily innervate the palate?

Answer 15

** greater and lesser palatine nerves (CN V)**

Question 16

What are the 4 major arteries supplying the pharynx and palate.

Answer 16

Lingual artery

Maxillary artery

Facial artery

Ascending pharyngeal artery

Question 17

Name the branches of major pharynx/palate arteries

Answer 17

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

Question 18

Name 5 passages into the nasal cavity.

Answer 18

1) Nares

2) Cribriform Plate

3) Incisive canal - transmits nasopalatine nerve and greater palatine artery

**4) Small foramina in lateral wall **

5) Sphenopalatine foramen

Question 19

Which nerves supply the nasal, palatine, and oral regions?

Answer 19

trigeminal

facial

glossopharyngeal

** vagus**

accessory

**cervical sympathetic trunk. **

Question 20

What are the principle nerves of the palate?

Answer 20

** Greater and lesser palatine nerves via greater palatine canal **

Question 21

What does the glossopharyngeal nerve innervate?

Answer 21

posterior onethird of the tongue, the tonsillar area, and pharynx and also supplies taste fibers for the posterior one-third of the tongue

Question 22

What does the vagus nerve innervate?

Answer 22

** Taste buds of the epiglottis, visceral sensory innervation of the pharyngeal mucosa and muscular innervation of the soft palate. **

Question 23

How do veins drain from pharynx/palate?

Answer 23

** Drain into the pterygoid plexus of veins and have connections with the dural sinuses**

Question 24

List the paranasal sinuses

Answer 24

frontal

ethmoid

maxillary

sphenoid