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Spinal Anatomy Practicals > Practical 2 Actions and Innervations > Flashcards

Practical 2 Actions and Innervations Flashcards

1
Q

Frontalis belly, epicranius

A
  • Innervation: temporal branches of facial nerve

- Actions: pulls scalp forward; wrinkles forehead and raises eyebrows

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2
Q

Corrugator supercilii

A
  • Innervation: temporal branches of facial nerve

- Action: draws eyebrows medial and down (forms vertical furrow between eyebrows)

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3
Q

Superior auricular

A
  • Innervation: temporal branches of facial nerve
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4
Q

Temporoparietalis

A
  • Innervation: temporal branches of facial nerve
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5
Q

Orbital part, orbicularis oculi

A
  • Innervation: temporal and zygomatic branches of facial nerve
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6
Q

Palpebral part, orbicularis oculi

A
  • Innervation: temporal and zygomatic branches of facial nerve
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7
Q

Procerus

A
  • Innervation: superior buccal branches of facial nerve

- Action: depress eyebrows medially

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8
Q

Compressor naris

A
  • Innervation: superior buccal branches of facial nerve

- Action: compress cartilage at bridge of nose

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9
Q

Dilatator naris

A
  • Innervation: superior buccal branches of facial nerve

- Action: widens, dilates nostrils and anterior nasal aperture

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10
Q

Depressor septi

A
  • Innervation: superior buccal branches of facial nerve

- Action: widens nostril

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11
Q

Levator labii superioris

A
  • Innervation: buccal branches of facial nerve

- Action: raises and everts upper lip

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12
Q

Levator labii superioris alaeque nasi

A
  • Innervation: buccal branches of facial nerve

- Actions: raises and everts upper lip; dilates nostril

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13
Q

Zygomaticus minor

A
  • Innervation: buccal branches of facial nerve

- Actions: raises upper lip; produces nasolabial groove

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14
Q

Zygomaticus major

A
  • Innervation: buccal branches of facial nerve

- Action: draws angle of mouth up and out

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15
Q

Levator anguli oris

A
  • Innervation: buccal branches of facial nerve

- Actions: raises angle of mouth; produces nasolabial groove

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16
Q

Buccinator

A
  • Innervation: buccal branches of facial nerve

- Action: compresses cheeks against teeth

17
Q

Orbicularis oris

A
  • Innervation: buccal and mandibular branches of facial nerve
  • Actions: close mouth; purse and protrude lips
18
Q

Risorius

A
  • Innervation: buccal and mandibular branches of facial nerve
  • Action: draws back angle of mouth
19
Q

Mentalis

A
  • Innervation: mandibular branches of facial nerve

- Action: raises and protrudes lower lip

20
Q

Depressor labii inferioris

A
  • Innervation: mandibular branches of facial nerve

- Action: draws lower lip down

21
Q

Depressor anguli oris

A
  • Innervation: mandibular branches of facial nerve

- Action: draws corner of mouth down and out

22
Q

Levator palpebra superioris

A
  • Innervation: oculomotor nerve

- Action: elevates upper eyelid

23
Q

Superior rectus

A
  • Innervation: oculomotor nerve

- Actions: elevate and adduct the cornea; intorsion

24
Q

Inferior rectus

A
  • Innervation: oculomotor nerve

- Actions: depress and adduct the cornea; extorsion

25
Q

Medial rectus

A
  • Innervation: oculomotor nerve

- Action: adducts cornea

26
Q

Inferior oblique

A
  • Innervation: oculomotor nerve

- Actions: elevate and abduct the cornea; extorsion

27
Q

Lateral rectus

A
  • Innervation: abducent nerve

- Action: abducts cornea

28
Q

Superior oblique

A
  • Innervation: trochlear nerve

- Actions: depress and abduct the cornea; intorsion

29
Q

Posterior auricular

A
  • Innervation: posterior auricular branch of facial nerve
30
Q

Occipitalis belly, epicranius

A
  • Innervation: posterior auricular branch of facial nerve

- Action: pulls scalp backward

31
Q

Temporalis

A
  • Innervation: anterior and posterior deep temporal branches, mandibular division, trigeminal nerve
  • Action: elevate and retract mandible
32
Q

Masseter

A
  • Innervation: masseteric branch, mandibular division, trigeminal nerve
  • Action: elevate and protract mandible
33
Q

Medial pterygoid

A
  • Innervation: medial pterygoid branch, mandibular division, trigeminal nerve
  • Actions: elevate and protract mandible; assists in gliding or rotatory movement
34
Q

Lateral pterygoid

A
  • Innervation: lateral pterygoid branch, mandibular division, trigeminal nerve
  • Actions: protracts mandible; pulls disc forward; depress chin and assist in gliding or rotatory movement
35
Q

Anterior scalene

A
  • Innervation: ventral rami C2-C6
36
Q

Middle scalene

A
  • Innervation: ventral rami C3-C8

Spinal Anatomy Practicals (2 decks)

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