Oral Cavity

Question 1

Angina

Answer 1

Condition with intense pain

Strangling or choking

Question 2

Digastric
O
I
A
N

Answer 2

O: post belly=temporal bone (mastoid notch)
Ant belly= inner side of the mandible
I intermediate tendon/hyoid
A: open the mouth
N: V3/VII

Question 3

Mylohyoid
O
I
A
N

Answer 3

O: inner side of the mandible
I: midline of the hyoid
A: elevates the floor of the mouth in swallowing
N: V3

Question 4

Geniohyoid
O
I
A
N

Answer 4

O: inner side of the mandible above the mylohyoid
I: hyoid
A: elevates the hyoid and draws it forward
N: C1 hitchhiking with XII

Question 5

Muscles of the tongue from top to bottom

Answer 5

Genioglossus
Geniohyoid
Mylohyoid
Digastric

Question 6

Ludwigs Angina

Answer 6

Infection of the floor of the mouth (submandibular space), often due to the spread of infection from an accessed tooth

Question 7

Midline of the tongue

Answer 7

Lingual frenulum

Question 8

Sublingual papilla

Answer 8

Opening of the submandibular salivary gland

Question 9

Fimbriated folds

Answer 9

Location of the lingual veins

Question 10

Sublingual folds

Answer 10

Openings for sublingual salivary glands

Question 11

Genioglossus
O
I
A
N

Answer 11

O: genial tubercle of mandible
I: tongue to its dorsal surface
A: protrude
N: XII

Question 12

Hyoglossus
O
I
A
N

Answer 12

O: greater and lesser horns of the hyoid
I: lateral side of the tongue
A: depress
N: XII

Question 13

Styloglossus
O
I
A
N

Answer 13

O: styloid process of the temporal bone
I: lateral side of the tongue
A: draws tongue superiorly and posteriorly
N: XII

Question 14

Damage to the LMN of CN XII results in the paralysis of what uncle of the tongue and what is the result of this

Answer 14

Genioglossus paralyzed and the tongue deviates towards the side of the lesion

Question 15

Vertical muscles of the tongue function

Superior and inferior muscle fibers

Answer 15

Flatten and broaden the tongue

Question 16

Longitudinal muscle fibers function

Fibers and posterior

Answer 16

Shorten tongue

Question 17

Transverse muscle fibers of the tongue fibers

Answer 17

Narrow the tongue

Question 18

Sensory innervation of the tongue

Answer 18

Ant to epiglottis=X-visceral sensory touch and taste
Post 1/3=IX
Ant1/3=VII-taste
V3-somatic sensory touch

Question 19

What is located at the palatoglossal arch

Answer 19

Site of the oropharyngeal membrane and is the boundary between the oral cavity and pharynx

Question 20

What is something unique about the lymphatic of the tongue

And what is the pattern of drainage

Answer 20

Lymph vessels of the tongue cross the midline: lesion may spread to the opposite side

Submental, submandibular, deep cervical

Question 21

Lingual nerve pathway

Answer 21

Arises from v3 and joined by the chords tympani (VII)

Question 22

Branches of VII in the facial canal (3 of them and what they do)

Answer 22

1. Greater petrosal nerve-visceral motor parasympathetic to the lacrimal gland, mucous glands of the nose, and palate. Also visceral sensory to the nasopharynx
2. Stapedial nerve- branchiomotor to the stapedius
3. Chorda tympani- taste to the anterior 2/3 of the tongue, visceral motor parasympathetic to the submandibular, sublingual salivary glands

Question 23

Where does the chorda tympani cross in the ear

Answer 23

The middle ear through the tympanic cavity over the handle of the malleus

Question 24

What is the petrotympanic fissure

Answer 24

A place for the chorda tympani and anterior tympanic artery to run

Question 25

Where do the parasympathetics from the chorda tympani synapse

Answer 25

The submandibular ganglion and then send fibers ot the salivary glands

Question 26

Clinical correlate: severing the lingual nerve in the floor of the mouth And what can cause it

Answer 26

Loss of taste and touch 1) V general sensation tot he anterior tongue 2) hitchhiking VII- taste fibers to the anterior tongue Can be caused by an impacted molar tooth

Question 27

Where does CN IX leave the skull

Answer 27

Via the jugular foramen

Question 28

What muscle does CN IX course close to in the pharynx

Answer 28

The stylopharyngeus muscle between the superior and middle constrictor

Question 29

Clinical correlate of removal of the palatine tonsils

Answer 29

Can damage the glossopharyngeal nerve and cause loss of visceral sensation and chemical taste to the post 1/3 of the tongue

Question 30

2 branches of the lingual artery

Answer 30

Dorsal lingual artery and the sublingual artery

Question 31

Facial artery branches

Answer 31

1: ascending palatine artery 2: tonsil are branch (palatine tonsil)-can result in a extensive bleeding in a tonsillectomy

Question 32

What muscle does the submandibular salivary gland wrap around

Answer 32

The mylohyoid