Pharynx

Question 1

What are the 3 divisions of the pharynx?

Answer 1

Nasopharynx

Oropharynx

Laryngopharynx

Question 2

Answer 2

Question 3

What is the adenoid?

Answer 3

,ass of mucosa associated with lymphatic tissue

Question 4

What does the pharyngotympnic tube connect?

Answer 4

Connects tympanic cavity with the nasopharynx

Question 5

What is adenoiditis?

Answer 5

Inflammation of the pharyngeal tonsil

Question 6

What is the adenoid also called?

Answer 6

Pharyngeal tonsils

Question 7

Where can adenoiditis spread?

Answer 7

Spread of infection to tubal tonsils (obstruction of pharyngotympanic tube)

Spread of infection to middle ear (otitis media)

Question 8

Describe the palatine tonsils

Answer 8

Ovoid mass of lymphatic tissue in the lateral wall of oropharynx

Question 9

Answer 9

Question 10

Answer 10

Question 11

What is the piriform fossa?

Answer 11

A small depression of the laryngopharyngeal cavity

Question 12

What innervates the pharynx? (Motor)

Answer 12

Vagus nerve

Question 13

What are the muscles of the pharynx?

Answer 13

Pharyngeal constructors

Question 14

What are the 3 constructor muscles of the pharynx?

Answer 14

Superior
Middle
Inferior

Question 15

What nerve initiates the gag reflex?

Answer 15

Vagus (accessory)

Question 16

When are the constrictor muscles activated?

Answer 16

Swallowing

Question 17

What is the sensory innervation to the pharynx?

Answer 17

Glossopharyngeal

Question 18

Is the vagus nerve para or sympathetic?

Answer 18

Parasympathetic

Question 19

What constructs the lower part of the pharynx?

Answer 19

Thyropharyngeus

Question 20

What muscle prevents influx?

Answer 20

Cricopharyngeus

Question 21

What is this muscle and its function?

Answer 21

Elevate the pharynx, may assist in opening of pharyngotympanic tube

Question 22

Answer 22

Question 23

Answer 23

Question 24

What are the 4 steps in swallowing?

Answer 24

Question 25

Describe the 4 stages of swallowing

Answer 25

Question 26

Where is the superior cervical ganglion located?

Answer 26

External surface of the pharynx (middle constrictor)

Question 27

What does the pharyngeal branch of vagus not supply?

Answer 27

Stylopharyngeus

Question 28

What supplies the stylopharyngeus?

Answer 28

Glossopharyngeal

Question 29

What nerves are responsible for the gag reflex?

Answer 29

Hypoglossal CNX Accessory CNIX

Question 30

What does the CNIX supply in the gag reflex?

Answer 30

Afferent limb of gag reflex