The face

Question 1

Which muscles in the head are trigeminal?

Answer 1

Any muscle that starts with “T”

Question 2

Buccal Nerve

Answer 2

One sensory, one motor. From different CN but adjacent in body.

Question 3

What house the upper teeth?

Answer 3

Maxilla

Question 4

What houses the lower teeth?

Answer 4

Mandible

Question 5

Where is the stylomastoforamen?

Answer 5

Between styloid and mastoid process.

Facial nerve leaves here to inervate posterior belly of digastric and stylohyoid

Question 6

Prterrion

Answer 6

Region where frontal, parietal, temporal, and sphenoid join. Located just behind the temple. Weakest part of skull. Middle meningeal artery runs underneath easily ruptured.

Question 7

What muscle rings the eye?

Answer 7

Orbicularis Oculi. Not only allows for facial expression but also allows squinting of eyes - important in lubricating cornea.

Question 8

What muscle rings mouth?

Answer 8

Orbicularis Oris.

Pucker muscle for kissing.

Question 9

Fronwing muscle?

Answer 9

Frontali - wrinkles brow

Question 10

What muscle prevents food from falling in vestibule of oral cavity?

Answer 10

Buccinator stops food from falling into space outside teeth by pressing into teeth

Question 11

4 Muscles of mastication?

Answer 11

Temporalis Muscles - elevates mandible / closes jaw
Masseter Muscle
Medial Pterygoid
Later Pterygoid

Question 12

How many muscles to open and close jaw?

Answer 12

One to Open, 3 to close. Lateral pterygoid opens.

Question 13

Nerve supply to face?

Answer 13

1. Motor - C.N. V and C.N. VII
2. Sensory - C.N. V
3. Parasympathetics - C.N. VII and C.N. IX

Question 14

Which cranial nerve is trigeminal?

Answer 14

V - “Great sensory nerve of face”
Motor function such as biting and chewing.
Largest cranial nerve

Question 15

Which Cranial nerve is facial

Answer 15

VII

Question 16

3 major branches of CN V?

Answer 16

1. Ophthalmic nerve - ONLY SENSORY
2. Maxillary nerve - ONLY SENSORY
3. Mandibular nerve - MOTOR AND SENSORY

Question 17

What do also sensory nerves have?

Answer 17

Dorsal root of spinal nerve have ganglion outside spinal cord

Question 18

Where does the maxillary nerve run?

Answer 18

Towards maxilla through infraorbital canal under eye

Question 19

Branches of facial nerve (CN7)?

Answer 19

"Ten zebras bought my car"
Temporal  
Zygomatic 
Buccal 
Mandibular 
Cervical

Question 20

Important facial artery?

Answer 20

External Corotid - 3 Branches

1. Facial - mandible - asastamoses with ophthalmic
2. Superficial temporal
3. Maxillary artery - dives behind mandible to deep face

Question 21

Middle meningeal artery

Answer 21

Off maxillary branch of external corotid artery into skull to supply Dura
The is artery that is easily damaged in pterrion!

Question 22

Inferior alveolar artery

Answer 22

Runs with same nerve supplying mandible and teeth arriving at chin with mental nerve

Question 23

What does lymphatic drainage follow?

Answer 23

Venous Drainage. Follows bottom sides of skull to lower mandible

Question 24

Where does the maxillary artery enter the pterygopalatine fossa?

Answer 24

Pterygomaxillary tissue

Question 25

Where is the duct of the parotid gland?

Answer 25

Across from upper second molar