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Head and Neck 1 > Axial Muscles > Flashcards

Axial Muscles Flashcards

(46 cards)

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1
Q
A

A. Levator labii superioris alaeque nasi

B. Levator labiisuperioris

C. Zygomaticus minor

D. Zygomaticus major

E. Rosorius

F. Platysma

G. Levator anguli oris

H. Orbicularis oris

I Mentalis

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2
Q
A

Epicranius (Frontal and occipital belly of occipitofrontalis, Galea aponeurotica)

A Corrugator supercilii

B Orbicularis oculi

C Procerus

D Nasalis

E Buccinator

F Depressor labii inferioris

G Depressor anguli oris

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3
Q
A

A. Auricularis anterior

B Temporoparietalis

C Auricularis Superior

D Auricularis posterior

E Occipital belly of occipitofrontalis

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4
Q

Depressor labii inferioris action

A

Depresses lower lip

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5
Q

Levator Labii Superioris Action

A

Elevates upper lip

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6
Q

Levator anguli oris action

A

Elevates corner of mouth

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7
Q

Mentalis action

A

Elevates and protrudes lower lip

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8
Q

Obicularis oris action

A

Compresses, purses lips

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9
Q

Risouris action

A

Draws corner of mouth to side

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10
Q

Depressor anguli oris action

A

Depresses corner of mouth

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11
Q

Zygomaticus action

A

Retracts and elevates corner of mouth

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12
Q

Zygomaticus minor action

A

Retracts and elevates upper lip

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13
Q

Corrugator supercilii action

A

eyebrow movement

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14
Q

Levator palpebrae superioris action

A

Elevates eyelid

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15
Q

Obicularis oculi action

A

Closes eye

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16
Q

Buccinator Origin and insertion

A

O: Alveolar process of maxilla and mandible and pterygomandibular raphe

I: blends into orbicularis oris fibers

CN 7

Pierced by parotid duct

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17
Q

Pterygomandibular raphe

Upper and Lower attachments

What attaches to it

A

Linear cord like connective tissue ligament

  • Upper attachment
    • Pterygoid hamulus
  • Lower attachment
    • Mandible, posterior to 3rd molar
  • Point of attachment for buccinator and superior pharyngeal contrictor muscles
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18
Q

Lateral Pterygoid

Superior O and I

A

Superior

O: Greater sphenoid wing, lateral surface

I: TMJ articular disc and capsule

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19
Q

Lateral Pterygoid

Inferior O and I

Study These Flashcards
A

Inferior

O: Lateral pterygoid lateral surface

I: Ramus and condylar

20
Q

Lateral Pterygoid Action

Study These Flashcards
A

Protrudes

Depresses

Lateral movement (deviates to injured side)

DOES NOT ELEVATE

21
Q

Lateral pterygoid surrounding structures

Study These Flashcards
A
  • Maxillary artery runs either superficial or deep to it
  • Surrounded by pterygoid venous plexus
  • Buccal branch of CNV passes btw the 2 heads
22
Q

Medial Pterygoid

Superficial O and I

Study These Flashcards
A

O: Maxillary tuberosity

I: Medial surface of ramus and angle

23
Q

Medial Pterygoid

Deep O and I

Study These Flashcards
A

O: Lateral pterygoid medial surface

Medial pterygoid lateral surface

Pterygoid fossa

I: Medial surface of ramus and angle

24
Q

Medial pterygoid actions

Study These Flashcards
A

Elevates! Slight protusion and lateral movement

25
Medial Pterygoid Contacts 5 structures Clical significance
* Contacts * Parotid gland * Inferior alveolar artery * Lingual nerve * Inferior alveolar nerve * Chorda tympani nerve * Deepest muscle of mastication * If needle is inserted below the mandibular foramen can be pierced during mandibular block
26
Masseter Superficial O and I
O: Anterior 2/3 of zygomatic arch I: Angle and ramus lateral surface
27
Masseter Deep O and I
O: Posterior 1/3 of zygomatic arch I: Coronoid and ramus lateral surface
28
Masseter action
Elvate! Some protrude and lateral
29
What 3 structures pass the Masseter
* Passing superficial to masseter * Parotid duct * Tranverse facial a. * Branches of CNVII (7)
30
Temporalis portions
* Anterior * Vertical fibers * Middle * Oblique fibers * Posterior * Horizontal fibers
31
Temporalis O and I
O: Temporal fossa, inferior temporal line, Temporal fascia I:Anterior border of ramus
32
Temporalis action
Elevates mandible into resting position Retract and lateral movement
33
What are 4 other muscles innervated by CN V3
Mylohyoid Tensor tympani Tensor veli palatini Anterior digastric
34
Sternocleidomastoid O and I
* O: Manubrium and clavicle * I: Mastoid region of the skull
35
Sternocleidomastoid action Nerves
Bilateral, flex neck Unilateral, rotation Face turns to contralateral side Head tilts ipsilateral side N: CN XI and C2-3
36
Oblique Cervical Muscles
Anterior Scalene Middle Scalene Posterior Scalene
37
Scalenes Attach Action Innervates
Attach: TP of C2-C7 and first 2 ribs Action: Elevate ribs or flex neck Innervated: by C4-C6
38
Scalene, structures associated
Subclavian artery and brachial plexus pass between the anterior and middle scalene Subclavian vein and phrenic nerve pass anteriorly to the anterior scalene
39
Suprahyoid Muscles
Digastric Stylohyoid Mylohyoid Geniohyoid
40
Digastric Anterior and posterior
* Anterior belly * Origin * Mandible * Insertion * Hyoid * Posterior * Origin * Mastoid Notch * Insertion * Hyoid
41
Digastric Action
Elevate hyoid Depresses/Retracts mandible during swallowing
42
Digastric Innervation
Anterior: CN V3 (Mylohyoid branch) Posterior: CN VII (Digastric branch)
43
Stylohyoid O I N A
Origin: Styloid process Inserion: Hyoid N:CN VII A: Elvate hyoid during swallowing
44
Mylohyoid O I N A
O: Mylohyoid line of mandible I: Hyoid via fibrous raphe N: CN V3 (Mylohyoid branch) A: Tightens and elevates oral floor Depresses, retracts, side to side mandible
45
Geniohyoid O I N A
O: Inferior mental spines (genial tubercle) I: Hyoid N: C1 via CN XII A: draws hyoid forward depresses/retracts mandible
46
What makes up the floor of the oral cavity
* Mylohyoid muscles * Muscular diaphragm * Geniohyoid muscles * cord like muscles * Superior to mylohyoid * Tongue * Superior to geniohyoid

Head and Neck 1 (13 decks)

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