Face 2

Question 1

what are the 5 layers on the head?

Answer 1

Skin
Connective tissue
Aponeurotic layer
Loose CT
Pericranium

(SCALP)

Question 2

what are the major nerves on the scalp?

Answer 2

CN V1, V2, V3, Lesser occipital and Greater occipital

Question 3

what branches off CN V1?

Answer 3

Supratrochlear n.
Supraorbital n.

Question 4

what branches off CN V2?

Answer 4

zygomaticotemporal n

Question 5

what branches off CN V3?

Answer 5

Auriculotemporal n

Question 6

what is special about the auriculotemporal n. area?

Answer 6

Only area in face where there is overlapping motor/sensory
-sensory from cervical plexus

Question 7

where does the greater occipital nerve come from?

Answer 7

DPR off C2

Question 8

.what are the 2 major arteries for blood supply in the scalp? what branches off of them?

Answer 8

REMEMBER: posE sIs

1. external carotid a.
   
   • Superficial temporal a.
   • Posterior auricular a.
   • Occipital a.
2. Internal carotid a.
   - Supratrochlear a.
   - Supraorbital a.

Question 9

________ drain into internal and external jugular v

Answer 9

Companion veins

Question 10

how can you differentiate a nerve vs artery?

Answer 10

• Sensory nerves run anterior/posterior, not too many right angles
• Arteries look like lattice work, usually branches come off at right angles

Question 11

_______ vein will be behind parotid gland

Answer 11

Retromandibular

Question 12

_______ fossa houses the temporalis muscle and is bounded by inferior/superior temporal lines, zygomatic bone

Answer 12

Temporal

Question 13

________ fossa is deep toward sphenoid bone, behind coronoid process

Answer 13

infratemporal

Question 14

The parotid gland is in the _________ region

Answer 14

retromandibular

Question 15

Masseter m. and parotid gland invested by _________ fascia

Answer 15

parotidomasseteric

Question 16

_________ is the largest salivary gland. where is it located?

Answer 16

Parotid gland,
Sits atop and around masseter and mandible, wraps around mandibular ramus

Question 17

what nerve branches through the parotid gland?

Answer 17

Facial

Question 18

Parotid gland gets sympathetic innervation from _____________ and parasympathetic from _______

Answer 18

-Sympathetic from external carotid plexus
-Parasympathetic from CN IX

Question 19

The ___________ goes into EAM, does some stuff in petrous portion of temporal bone, then exits through stylomastoid foramen to innervate all muscles of facial expression

Answer 19

facial nerve

Question 20

the _______ is a branch of the facial nerve that provides Taste to anterior ⅔ tongue

Answer 20

Chorda tympani

Question 21

what are the important branches of the external carotid artery?

Answer 21

Superficial temporal a.
Posterior auricular a.
Maxillary a.

Question 22

the retromandibular vein is formed by the union of __________ and __________

Answer 22

superficial temporal v. and maxillary v.

Question 23

what is the Origin, Insertion, Innervation, and action of the superficial portion of the Masseter m?

Answer 23

O: anterior ⅔ inferior zygomatic arch
Insertion: lateral ramus to mandibular angle
Inn: trigeminal
Action: elevates mandible, transverse movements unilaterally

Question 24

what is the Origin, Insertion, Innervation, and action of the deep portion of the Masseter m?

Answer 24

Origin: deep medial zygomatic arch
Insertion: superior ½ lateral ramus
Inn: trigeminal
Action: elevates mandible, transverse movements unilaterally

Question 25

what is the Origin, Insertion, Innervation, and action of the Temporalis m?

Answer 25

Origin: Temporal fossa and temporalis fascia
Insertion: Anterior and medial border of coronoid process
Inn: trigeminal
Action: Elevates mandible, retraction from posterior fibers