S2-Superficial face

Question 1

what is the somatosensory innervation of the superficial face

Answer 1

trigeminal nerve (superficial face, forehead, oral cavity). 
Facial nerve (skin of outer ear, nasopharynx, taste)

Question 2

what is the somatomotor innervation of the superficial face

Answer 2

trigeminal nerve (muscles of mastication).
facial nerve (muscles of facial expression)

Question 3

what supplies the sensory to superficial face and scalp

Answer 3

greater and lesser occipital nerve, greater auricular nerve, trigeminal nerve, facial nerve

Question 4

where does the greater occipital nerve emerge and what does it innervate

Answer 4

dorsal rami of C2,
emerges from below sub occipital triangle;
innervates scalp on back of head

Question 5

what rami does the lesser occipital nerve come from and what does it innervate

Answer 5

ventral rami of C2 and innervates scalp on lateral areas of head, posterior to ear

Question 6

what rami does greater auricular nerve come from and what does it innervate

Answer 6

ventral rami of C2 and Dorsal rami of C3.

innervates skin over parotid gland and mastoid process along with surfaces of outer ear

Question 7

what are the 3 branches of the trigeminal nerve

Answer 7

ophthalmic, maxilliary, mandibular

Question 8

where does the ophthalmic nerve exit skull

Answer 8

through superior orbital fissure

Question 9

what are the major branches of the ophthalmic nerve

Answer 9

frontal, lacrimal, nasociliary

Question 10

what are the major branches of the frontal nerve and what do they do

Answer 10

supraorbital: passes through supraorbital foramen; skin of lateral forehead/anterior scalp
supratrochlear: skin of medial forehead

Question 11

what are the branches of the nasociliary nerve and what do they do

Answer 11

infratrochlear: skin lateral to root of nose (bridge).

external nasal n (from anterior ethmoid n): skin of nasal ala, vestibule and dorsum of nose

Question 12

where does the maxillary nerve exit the skull

Answer 12

foramen rotundum

Question 13

what are the major branches of the maxillary nerve

Answer 13

infraorbital, zygomatic

Question 14

what does the infraorbital n. pass through and what does it innervate

Answer 14

passes through infraorbital foramen, maxillary sinus. innervates skin of cheek, lateral nose and superior lip

Question 15

what does zygomaticofacial nerve inneravte

Answer 15

skin on prominence of cheek

Question 16

what does the zygomaticotemporal nerve innervate

Answer 16

anterior part of temporal fossa

Question 17

where does the mandibular nerve exit the skull

Answer 17

foramen ovale

Question 18

what are the major branches of the mandibular nerve

Answer 18

auriculotemporal, buccal, mental n

Question 19

what does the auricotemporal nerve innervate

Answer 19

skin posterior 2/3 temporal region

Question 20

what does the mental nerve innervate

Answer 20

skin of chin and inferior lip

Question 21

what are all muscles of mastication innervated by

Answer 21

CN V3 (mandibular branch)

Question 22

what are the muscles of mastication

Answer 22

masseter, temporalis, medial pterygoid, lateral pterygoid

Question 23

what are all muscles of facial expression innervated by

Answer 23

CN VII (facial nerve)

Question 24

what does the buccinator muscle do

Answer 24

compresses cheek, holds food between teeth during chewing

Question 25

what does the depressor anguli oris muscle do

Answer 25

draws corners of mouth inferior and laterally

Question 26

what does the depressor labii inferioris muscle do

Answer 26

draws lower lip inferiorly

Question 27

what does the levator anguli oris do

Answer 27

draws coners of mouth superiorly and laterally

Question 28

what does the levator labii superioris do

Answer 28

opens lips: raises and furrows the upper lip

Question 29

what does the mentalis muscle do

Answer 29

protrudes lower lip (pout): wrinkles chin

Question 30

what does the orbicularis oris muscle do

Answer 30

compresses and purses lips (kiss muscle)

Question 31

what does the risorius muscle do

Answer 31

draws corner of lip laterally; tenses lip; synergist of zygmaticus

Question 32

what does the zygomaticus major muscle do

Answer 32

elevate corner of mouth (smile muscle)

Question 33

what does the zygomaticus minor muscle do

Answer 33

elevate corner of mouth (smile muscle)

Question 34

where does the facial nerve exit

Answer 34

stylomastoid foramen

Question 35

what are the branches of the facial nerve

Answer 35

posterior auricular, temporal, zygmatic, buccal, mandibular, cervical

Question 36

what is the GVA function of the facial nerve

Answer 36

sensory innervation of nasopharynx

Question 37

what does the majority of the arterial supply to the superficial face and scalp come from

Answer 37

external carotid arteries

Question 38

what does the occipital artery supply

Answer 38

scalp of back of head

Question 39

what is the only superficial branch of the maxillary artery

Answer 39

mental artery (runs with mental nerve to chin)

Question 40

what branches of the internal carotid supply the superficial face and scalp

Answer 40

supraorbital and supratrochlear (supply muscles and skin of forehead and anterior scalp)

Question 41

what is the venous drainage for the superficial face and scalp

Answer 41

external jugular veins

Question 42

what is the largest salivary gland

Answer 42

parotid gland

Question 43

where is the parotid gland located

Answer 43

anterior to ear

Question 44

what does the parotid gland receive innervation from

Answer 44

great auricular nerve

Question 45

where does parotid duct deliver saliva to oral cavity

Answer 45

lateral to 2nd upper molar teeth

Question 46

what is the main arterial supply to the orbit and eyeball

Answer 46

ophthalmic artery (from internal carotid artery)

Question 47

what is the general somatic efferent to the extrinsic eye msucles

Answer 47

occulomotor nerve, trochlear nerve, abducens nerve

Question 48

what is the action of the inferior oblique muscle of the eye

Answer 48

moves eye superiorly (elevate eye) and lateral (abducts)

Question 49

what is the action of the superior oblique muscle of the eye

Answer 49

moves eye inferiorly and laterally (abducts eye)

Question 50

what controls the dilator pupillae muscle of the eye

Answer 50

sympathetics

Question 51

what controls the sphincter pupillae muscle of the eye

Answer 51

parasympathetic control