Mouth

Question 1

What nerve innervates the intrinsic muscles of the tongue

Answer 1

Hypoglossal 12

Question 2

What are the extrinsic muscles of the tongue

Answer 2

Genioglossus, hyoglossus, styloglossus, palatoglossus

Question 3

What nerve innervates the palatoglossus

Answer 3

Motor- Vagus

Question 4

Which nerve is responsible for taste of anterior tongue

Answer 4

Facial- chorda tympani

Question 5

Which nerve is responsible for sensation of anterior tongue

Answer 5

Vc

Question 6

Which nerve is responsible for sensation and taste of posterior tongue

Answer 6

Glossopharyngeal

Question 7

What is the name of the duct that leads from submandibular gland

Answer 7

Whartons

Question 8

What is the name of the duct that leads from the parotid gland

Answer 8

Stensens

Question 9

What is sialolithiasis

Answer 9

Stones, usually submandibular

Question 10

Cause of stones

Answer 10

Dehydration and decreased flow

Question 11

Main pathogen for tonsilitis

Answer 11

Streptococcus pyongenes

Question 12

Peritonsillar absess

Answer 12

Infection of soft tissue

Deviated uvula away from affected site

Question 13

Boundaries of nasopharynx

Answer 13

Base of skull to upper border of soft palate

C1/2

Question 14

Boundaries of oropharynx

Answer 14

C2/3

Soft palate to epiglottis

Question 15

What are the arches called

Answer 15

Palatoglossal and palatopharyngeal with tonsils inbetween

Question 16

Boundaries of laryngopharynx

Answer 16

C4-5
Oropharynx to oesophagus
Contains piriform fossa

Question 17

Role of epiglottis and fossa

Answer 17

Divert food away from larynx

Question 18

What are the longitudinal muscles and innervation

Answer 18

Stylopharyngeus- 9
Palatopharyngeus- 10
Salpingopharyngeus- 10

Question 19

What are the circular muscles

Answer 19

Constrictors - 10

superior, middle, inferior

Question 20

Where does the stylopharyngeus come and go to

Answer 20

Styloid process to thyroid cart

Question 21

Where does the palatopharyngeus come and go to

Answer 21

Hard palate to posterior border of thyroid cart

Question 22

Where does the salpingopharyngeus come and go to

Answer 22

Cart part of ET and merges with palatopharyngeus

Question 23

What are the two parts of the inferior constrictor

Answer 23

Thyropharyngeus- origin thyroid cart
Cricopharyngeal- origin cricoid cart
Both into pharyngeal raphe

Question 24

Motor innervation of pharynx

Answer 24

Vagus except stylopharyngeus - 9

Question 25

Sensory innervation of pharynx

Answer 25

Vb- naso
0- oro
10- laryngo

Question 26

What are the symptoms of enlarged adenoids

Answer 26

Middle ear infections as ET blocked.

Snoring, chronic sinusitis, nasal tone

Question 27

Why is a pharyngeal pouch called false diverticulum

Answer 27

Doesn’t involve muscle layer
Weakness in inferior constrictor muscles
Kilians Dehiscence.

Question 28

What causes pouch

Answer 28

Failure of UOS to relax, abnormal swallow time = increase pressure.

Question 29

Oral stage of swallowing

Answer 29

Voluntary

Bolus pressed against palate and moved into oropharynx - CN 12- tongue muscle

Question 30

Pharyngeal stage of swallowing

Answer 30

Involuntary
Soft palate elevates and seals of naso - 10
Muscles shorten to widen and elevate pharynx- Vc,7,12,8,10
Larynx elevated and sealed off as epiglottis closes over
UOS relaxes

Question 31

Esophageal stage of swallowing

Answer 31

Involuntary
Upper striated muscles - 10
and lower smooth muscles perform peristalsis

Question 32

Issues with CN 9 or 10

Answer 32

Absent gag- 9
Deviated uvula to unaffected side- 10
Dysphasia 
Taste impaired to posterior tongue- 9
Loss of oropharynx sensation- 9

Question 33

Issues with CN 12

Answer 33

Wasted tongue points to side affected