Head & Neck 2

Question 1

What’s the function of the hypoglossal nerve?

Answer 1

Purely motor to the tongue

Question 2

Where does the maxillary branch of the trigeminal nerve come out?

Answer 2

Foramen Rotundum

Question 3

What does the maxillary nerve supply sensation to ?

Answer 3

Meninges
Nasal cavity
Sinuses
Pharyngeal wall
Upper teeth
Skin over temple, cheek & upper lip

Question 4

What supplies the Parasympathetic innervation to the lacrimal gland?

Answer 4

Maxillary nerve

Question 5

What does the pterygopalatine fossa contain?

Answer 5

Maxillary nerve- zygomatic, nasopalatine, postsup alveolar, greater/lesser palatine, pharyngeal
Pterygopalatine ganglion

Question 6

Which sinus drain into the nasal cavity?

Answer 6

Maxillary
Frontal
2 Ethmoid
Naso-lacrimal ducts

Question 7

What vessels form Kiesselbach’s plexus?

Answer 7

Sphenopalatine
Post & Ant Ethmoid
LSuperior labial
Greater Palatine

Question 8

What are the paranasal sinuses?

Answer 8

Paired frontal
Sphenoid
Maxillary
Ethmoid

Question 9

Which are the largest sinuses?

Answer 9

Maxillary

Question 10

Which sinuses are present at birth?

Answer 10

Ethmoid
Maxillary
Sphenoid

Question 11

When do the frontal sinuses develop?

Answer 11

10years

Question 12

What are the ages permanent teeth arise?

Answer 12

Central incisors: 7
First molars: 7
Lateral incisors: 8
Canine: 10
Premolars: 11
Second molar: 12
Third molar: 20

Question 13

What’s the most common nerve blocked in dental anaesthetic?

Answer 13

Inferior alveolar nerve

Question 14

What nerves innervate the tongue?

Answer 14

Hypoglossal (motor)
Glossopharyngeal (motor & Sensation to post 1/3)
Lingual (sensation to ant 2/3)

Question 15

What makes up the laryngeal skeleton?

Answer 15

Epiglottis
Thyroid
Arytenoid
Cricoid- complete ring

Question 16

What bones make up the orbit?

Answer 16

Frontal
Maxilla
Zygoma
Sphenoid
Ethmoid
Lacrimal

Question 17

Which part of the orbit is damaged in an orbital blow out?

Answer 17

Maxilla Orbit floor broken and falls down into the maxillary sinus below

Question 18

What are the extra ocular muscles

Answer 18

Superior rectus
Superior oblique
Inferior oblique
Lateral rectus
Medial rectus
Inferior rectus

Question 19

What muscles does the oculomotor nerve act on?

Answer 19

Medial rectus
Superior & inferior rectus
Inferior oblique

Question 20

What nerve innervates the lateral rectus

Answer 20

Abducens

Question 21

What nerve innervates the superior oblique

Answer 21

Troclear

Question 22

What Sx will you get with a CN6 palsy?

Answer 22

Diplopia in horizontal plane
Eye affected turned inwards
Convergent quint

Question 23

What Sx will you get with a CN4 palsy?

Answer 23

Vertical diplopia
Eye turned upwards- patient tilts head
Trouble reading or walking downstairs

Question 24

What Sx will you get with a CN3 palsy?

Answer 24

Eye is down and outwards
Severe diplopia
Ptosis
Fixed & dilated pupils
Loss of accommodation

Question 25

What are the Sx with a CNIX palsy?

Answer 25

Loss of gag reflex
Dysphagia
Loss of carotid sinus reflux
Loss of test post 1/3

Question 25

What are the Sx with a CNIX palsy?

Answer 25

Loss of gag reflex
Dysphagia
Loss of carotid sinus reflux
Loss of test post 1/3

Question 26

Where does the opthalmic nerve give sensation?

Answer 26

Forehead & scalp
Sinuses
Upper eyelid
Cornea
parts of meninges

Question 27

What is the motor & sensory function of the mandibular nerve?

Answer 27

M: Muscles of mastication, tensor tympani, fibres to parotid gland
S: Lower lip & chin, lower teeth, floor of oral cavity, ant 2/3 tongue, TMJ, external ear, auditory meatus