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Head, Neck, and TMJ > Muscles of the Head > Flashcards

Muscles of the Head Flashcards

1
Q

Occipitofrontalis:

Occipital Belly

A

O: Highest nuchal line of occipital bone
I: Epicranial aponeurosis
N: Facial Nerve
A: Moves scalp on skull and raises eyebrows

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2
Q

Occipitofrontalis:

Frontal Belly

A

O: Skin and superficial fascia of eyebrows

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3
Q

Orbicularis Oculi:

Palpebral part

A

O: Medial palpebral ligament
I: Lateral palpebral raphe
N: Facial Nerve
A: Closes eyelids and dilates lacrimal sac

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4
Q

Orbicularis Oculi:

Orbital part

A

O: Medial palpebral ligament and adjoining bone
I: Loops return to origin
N: Facial nerve
A: Throws skin around orbit into folds to protect eyeball

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5
Q

Corrugator Supercilii

A

O: Superciliary arch
I: Skin of eyebrow
N: Facial nerve
A: Vertical wrinkles of forehead, as in frowning

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6
Q

Compressor nassi

A

O: Frontal process of maxilla
I: Aponeurosis of bridge of nose
N: Facial nerve
A: Compresses mobile nasal cartilages

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7
Q

Dilator naris

A

O: Maxilla
I: Ala of nose
N: Facial nerve
A: Widens nasal aperture

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8
Q

Procerus

A

O: Nasal bone
I: Skin between eyebrows
N: Facial nerve
A: Wrinkles skin of nose

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9
Q

Orbicularis Oris

A

O: Maxilla, mandible, and skin
I: Encircles oral orifice
N: Facial nerve
A: Compresses lips together

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10
Q

Levator labii superioris alaeque nasi

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, dilates the nostril, elevates the wing of the nose and the upper lip

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11
Q

Levator labii superior

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, elevates upper lip, exposes maxillary teeth

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12
Q

Zygomaticus minor

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, pulls the upper lip backward, upward, and outward, aids in deepening and elevating the nasolabial sulcus

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13
Q

Zygomaticus major

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, lift the angle of the mouth upwards and laterally

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14
Q

Levator anguli oris

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, lifts the angle of the mouth

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15
Q

Risorius

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, retracts/pulls the angle of the mouth laterally

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16
Q

Depressor anguli oris/Triangularis

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, draws the corner of the mouth downward and laterally

17
Q

Depressor labii inferioris

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, draws lower lip downward and laterally

18
Q

Mentalis

A

O: Arise from bones and fascia around oral aperture and insert into substance of lips
N: Facial nerve
A: Separate lips, raises lower lips and produces small wrinkles in the chin

19
Q

Buccinator

A

O: Outer surface of alveolar margins of maxilla and mandible and pterygomandibular ligament
N: Facial nerve
A: Compresses cheeks and lips against teeth

20
Q

Platysma

A

A: Draws up skin of the superior chest and neck

21
Q

Masseter

A

O: Zygomatic arch
I: Lateral surface ramus of mandible
N: Mandibular division of trigeminal nerve
A: Elevates mandible to occlude teeth

22
Q

Temporalis

A

O: Floor of temporal fossa
I: Coronoid process of mandible
N: Mandibular division of trigeminal nerve
A: Anterior and superior fibers elevate mandible; posterior fibers retract mandible

23
Q

Lateral pterygoid (two heads)

A

O: Greater wing of sphenoid and lateral pterygoid plate
I: Neck of mandible and articular disc
N: Mandibular division of trigeminal nerve
A: Pulls neck of mandible forward

24
Q

Medial pterygoid (two heads)

A

O: Tuberosity of maxilla and lateral pterygoid plate
I: Medial surface of angle of mandible
N: Mandibular division of trigeminal nerve
A: Elevates mandible

25
Q

Muscles of Scalp

A

Occipitofrontalis:

  • Occipital belly
  • Frontal belly
26
Q

Muscles of Facial Expression

A 
Orbicularis Oculi:
- Palpebral part
- Orbital part
Corrugator Supercilii
Compressor nasi
Dilatpr naris
Procerus
Orbicularis oris
27
Q

Dilator Muscles of Lips

A 
Levator labii superioris alaeque nasi
Levator labii superioris
Zygomatic minor
Zygomaticus major
Levator anguli oris
Risorius
Depressor anguli oris
Depressor labii inferioris
Mentalis
Buccinator 
Platysma
28
Q

Muscles of Mastication

A 
Masseter
Temporalis
Lateral pterygoid
Medial pterygoid
Digastric (Anterior)

Head, Neck, and TMJ (3 decks)

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