Superficial Face Flashcards

1
Q

Somatosensory Innervation of the superficial face

A
  • Trigeminal nerve (CN V)
    • Superficial face
    • Forehead
    • oral cavity
    • etc.
  • Facial Nerve (CN VII)
    • Skin of outer ear
    • nasopharynx
    • taste
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2
Q

Somatomotor innervation of the superficial face

A
  • Trigeminal Nerve (CN V)
    • muscles of mastication
  • Facial nerve (CN VII)
    • Muscles of facial expression
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3
Q

The greater occipital nerve emerges from below the ______

A

suboccipital triangle (below obliquus capitits inferior m.)

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4
Q

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

A

Greater Auricular Nerve (ventral rami of C2 and dorsal rami of C3)

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5
Q

Innervates scalp on lateral area of head, posterior to ear

A

Lesser occipital Nerve (Ventral Rami of C2)

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6
Q

Innervates skin on all of face, forehead, temporal region, oral cavity, skin of outer ear and external audiotry meatus

A

Trigeminal Nerve

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7
Q

Innervates only skin of outer ear

A

Facial Nerve (CN VII)

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8
Q

The Opthalmic Nerve(CN V1) exits the skull through the

A

Superior orbital fissure (SRO)

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9
Q

innervates skin of medial forehead

A

Supratrochlear nerve (branch of opthalmic nerve)

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10
Q

Innervates lacrimal gland

A
  • Lacrimal nerve (which is a branch off the opthalmic)
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11
Q

Innervates skin lateral to root of nose

A
  • Infratrochlear nerve (branch of opthalmic nerve)
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12
Q

innervates skin of nasal ala, vestibule and dorsum of nose

A
  • External Nasal nerve (branch of opthalmic nerve)
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13
Q

The maxillary nerve

A
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14
Q

How can you remember the foramen of the skull for the branches of the trigeminal nerve

A
  • SRO
  • (standing room only)
    • Opthalmic (V1)
      • Superior Orbital fissure
    • Maxillary (V2)
      • foramen Rotundum
    • Mandibular (V3)
      • Formaen Ovale
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15
Q

innervates maxillary sinus, skin of cheek, lateral nose, and superior lip

A

Infraorbital nerve (branch off the Maxillary nerve)

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16
Q

Innervates skin on prominence of cheek

A
  • Zygomaticofacial nerve (is a branch of Maxillary nerve (V2)
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17
Q

Innervates Anterior part of temporal fossa

A

Zygomaticotemporal nerve (branch off Maxillary nerve (V2))

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18
Q

The mandibular nerve exits the skull through the

A

foramen ovale

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19
Q

Innervates skin posterior 2/3 temporal region

A

Auriculotemporal nerve (branch of Mandibular nerve)

20
Q

Innervates skin and oral mucosa of cheek and gums

A
  • Buccal nerve (branch of mandibular nerve)
21
Q

Innervates skin of the chin and inferior lip

A

Mental nerve (branch of mandibular nerve)

22
Q

Functions of the Buccinator

A

Compresses cheek, holds food between teeth during chewing

23
Q

functions of depressor anguli oris

A

Draws corners of mouth inferiorly and laterally (“forwn” muscle)

24
Q

Funcitons of dperessor labii inferioris

A

Draws lower lip inferiorly

25
Q

Functions of levator anguli oris

A

draws corners of mouth superiorly and laterally (“smile” muscle)

26
Q

Functions of Levator labii superioris

A
  • Opens lips
  • raises and furrows the upper lip (“Elvis” lip snarl)
27
Q

Functions of Mentalis

A
  • Protrudes lower lip (“pout”)
  • wrinkles chin
28
Q

Funcitons of Risorius

A
  • Draws corner of lip laterally
  • tenses lips
  • synergist of zygomaticus
29
Q

Functions of Orbicularis oris

A

Compresses and purses lips (“kiss” muscle)

30
Q

Functions of Zygomaticus major

A

Elevates corner of the mouth (smile muscle)

31
Q

Zygomaticus minor functions

A
  • Elevates corner of the mouth (smile muscle)
32
Q

Functions of orbicular oculi

A

Blink/close eyes

33
Q

functions of platysma

A

tense skin of neck

34
Q

functions of frontal belly of occipitofrontalis

A
  • wrinke forehead
  • Raise eyebrows
35
Q

The facial nerve exits the skull via

A

The Sylomastoid Foramen

36
Q

What artery(ies) of the face come from the internal carotid

A
  • Supra-orbital artery
  • Supratrochlear artery
37
Q

What is the only superficial branch of the Maxillary artery

A

Mental artery

38
Q

What is the largest salivary gland

A
  • parotid gland
39
Q

The Parotid Gland receives sensory innervation from

A

great auricular nerve

40
Q

The parotid gland delivers saliva to oral cavity just lateral to

A

2nd upper molar teeth

41
Q

Accommodation

A
  • Suspensory ligaments from ciliary body (ciliary m.) go to lens to control focus
    • ciliary m. relaxed -> tension on suspensory ligaments -> lens stretched out for far vision
    • Ciliary m. contracts -> suspensory ligaments relaxed -> lens becomes fatter for near vision
  • To view near objects, parasympathetics are activated to contract ciliary muscle (contricting pupil)
  • To view far objects, parsympathetics are simply removed, allowing the ciliary to relax, no sympathetics involved (lens dilates)
42
Q
A
43
Q
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44
Q
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45
Q
A
46
Q
A