Muscles #1 Origin and Insertion Flashcards

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1
Q

Frontalis (Frontal Belly)

A

Origin: epicranial aponeurosis
Insertion: skin superior to supraorbital margin

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2
Q

Frontalis (Occipital Belly)

A

Origin: occipital bone/mastoid process of temporal bone
Insertion: epicranial aponeurosis

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3
Q

Orbicularis Oris

A

Origin: muscle fibers surrounding opening of mouth
Insertion: skin at corner of mouth

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4
Q

Orbicularis Oculi

A

Origin: medial wall of orbit
Insertion: circular path around orbit

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5
Q

Zygomaticus Major

A

Origin: zygomatic bone
Insertion: skin at angle of mouth/orbicularis oris

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6
Q

Masseter

A

Origin: maxilla/zygomatic arch
Insertion: angle/ramps of mandible

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7
Q

Sternocleidomastioid

A

Origin: sternal head; manubrium of sternum; clavicular head; medial third of clavicle
Insertion: mastoid process of temporal bone/lateral half of superior nuchal line of occipital bone

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8
Q

Trapezius

A

Origin: superior nuchal line of occipital bone/spines of C7-T12
Insertion: clavicle; acromion/spine of scapula

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9
Q

Buccinator

A

Origin: alveolar processes of maxilla/mandible; pterygomandibular raphe
Insertion: orbicularis oris muscle

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