Face, Temporal And Infratemporal Fossa

Question 1

How to test facial nerve?

Answer 1

Raise eyebrows, close eyes and keep them closed, puff cheeks and reveal teeth

Question 2

What does parotid gland do?

Answer 2

Produce watery saliva

Question 3

Facial nerve splits into?

Answer 3

Large motor root and smaller nervous intermedius arising at cerebellar pontine angle.

Question 4

What passes through internal acoustic meatus ?

Answer 4

CN 8 and CN 7

Question 5

Sensory supply of facial nerve?

Answer 5

Anterior 2/3 via chorda tympani and submandibular ganglion

Question 6

After the parotid gland, the facial nerve divides into 5 branches:

Answer 6

Temporal, zygomatic, buccal, marginal mandibular, and cervical

Question 7

Which branch passes behind ear of the facial nerve?

Answer 7

Posterior auricular

Question 8

Deep vein, retromandibular vein is formed by?

Answer 8

Superficial temporal vein and maxillary vein join, then into external jugular vein and into subclavian vein

Question 9

What’s the difference between Bell’s palsy and stroke?

Answer 9

In stroke the forehead will be spared and in Bell’s palsy it wont.

Question 10

Temporalis muscle origin and insertion?

Answer 10

Origin- temporal bone

Insertion- medial surface of coronoid process of mandible

Question 11

Masseter muscle insertion and origin?

Answer 11

Origin- zygomatic bone/ arch

Insertion-lateral surface of ramus of the mandible

Question 12

Infratemporal fossa contains?

Answer 12

My mother momentarily forgot giving pizza

Maxillary artery 
Mandibular nerve 
Medial and lateral pterygoids 
Branches of facial nerve
Glossopharyngeal nerve 
Pterygoid plexus of veins

Question 13

2 heads of medial pterygoid?

Answer 13

Deep head from medial surface of the lateral pterygoid plate of sphenoid bone.

Superficial head from maxilla

Both insert to mandible

Question 14

2 heads of the lateral pterygoid?

Answer 14

Upper head- roof of fossa
Lower head- lateral surface of lateral pterygoid plate

Insertion- neck of mandible and temporomandibular joint

Question 15

How is lateral pterygoid different to other muscles?

Answer 15

Depresses mandible

Question 16

Maxillary artery gives off which branch that travels within mandibular canal?

And what does this artery give off?

Answer 16

Inferior alveolar artery gives off mylohyoid branch

Question 17

Where do both heads of the lateral pterygoids insert?

Answer 17

Temporomandibular joint

Question 18

Bruxism?

Answer 18

Teeth grinding

Question 19

What does auricotemporal nerve do?

Answer 19

Conveys postganglionic parasympathetic fibres from otic ganglion to parotid gland

Question 20

Mandibular nerve supplies which muscles?

Answer 20

1. Medial andl lateral pterygoids
2. Tensor palatine
3. Temporalis
4. Masseter

Question 21

Which sensory branch of mandibular nerve supplies cheek?

Answer 21

Buccal nerve

Question 22

Divisions of mandibular nerve?

Answer 22

Auricotemporal branch, lingual and inferior alveolar nerve.

Question 23

Where is anaesthetic placed to ancesthetize all mandibular teeth?

Answer 23

Inferior alveolar nerve- block

Question 24

What percentage of salivary tumours arise from parotid gland?

Answer 24

90% and 75 % of tumours are benign

Question 25

Which benign tumour is associated with smoking history?

Answer 25

Warthin's tumour

Question 26

What are main risk factors for tumours?

Answer 26

Genetic predisposition and radiation exposure.

Question 27

Main benign tumour?

Answer 27

Pleomorphic adenoma

Question 28

Main malignant tumour?

Answer 28

Mucoepidermoid carcinoma

Question 29

What percent of communication is non verbal?

Answer 29

Upwards of 70

Question 30

Role of buccinator?

Answer 30

Maintains the tightness of the cheeks and presses them against the teeth during chewing Compresses cheek

Question 31

Role of zygomaticus major?

Answer 31

Draws the mouths angle upwards and outwards Elevates labial commisure

Question 32

Platysma role?

Answer 32

Mouth movement including frowning Depresses mandible against resistance Tenses fascia of neck

Question 33

What is special about facial muscles?

Answer 33

Only group of muscles that insert onto skin

Question 34

Innervation of face?

Answer 34

Cutaneous innervation - trigeminal nerve Muscles of face- facial nerve

Question 35

Ophthalmic nerve splits into?

Answer 35

Lacrimal- skin/ secretomotor fibres to lacrimal gland Frontal- supraorbital and supratrochlear Nasociliary- posterior ethmoidal, anterior ethmoidal, and infratrochlear

Question 36

How is ophthalmic nerve tested?

Answer 36

corneal blink reflex, whips of cotton

Question 37

Which nerve enters the pterygopalatine fossa?

Answer 37

Maxillary nerve, gives off branches to pterygopalatine ganglion through inferior orbital fissure

Question 38

Maxillary nerve branches into?

Answer 38

Infraorbital Zygomatic Superior alveolar

Question 39

Mandibular nerve sensory?

Answer 39

``` Lingual Inferior alveolar nerve Mental Buccal Auriculotemporal ```

Question 40

Mandibular nerve motor?

Answer 40

Temporalis Masseter Medial and lateral pterygoids Nerve to mylohoid

Question 41

What does temporalis fossa contain?

Answer 41

Temporalis muscle | Branches of maxillary

Question 42

Where does facial nerve exit and move through

Answer 42

Exits via internal acoustic meatus Moves through facial canal and stylomastoid Foramen

Question 43

Facial nerve sensory and taste?

Answer 43

Skin over external auditory meatus Taste- via chorda tympani via lingual nerve to anterior 2/3 of tongue

Question 44

What passes through parotid gland?

Answer 44

Facial nerve

Question 45

What does parotid gland do?

Answer 45

Release saliva into upper second molar

Question 46

Muscles of mastication?

Answer 46

Temporalis Masseter Medial pterygoid Lateral pterygoid

Question 47

Arterial supply to face?

Answer 47

Lingual Facial Maxillary Superficial temporal

Question 48

Facial nerve drains face starting at eye into internal jugular vein except?

Answer 48

Superficial temporal drains into external jugular

Question 49

Internal and external jugular vein drain into?

Answer 49

Subclavian nerve