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Biol 223 Anatomy & Physiology > Lab 5 - Muscle Functions > Flashcards

Lab 5 - Muscle Functions Flashcards

1
Q

Frontalis

A

Elevates eyebrows
Wrinkles skin of forehead

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2
Q

Occipitalis

A

Pulls scalp posteriorly

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3
Q

Buccinator

A

Compresses the cheek

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4
Q

Orbicularis Oculi

A

Closes the eye

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5
Q

Orbicularis Oris

A

Closes and protrudes the lip

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6
Q

Mentalis

A

Elevates and protrudes the lip

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7
Q

Platysma

A

Depresses lower lip
Tenses skin of neck

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8
Q

Zygomaticus Major

A

Pulls angle of mouth superiorly and laterally

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9
Q

Zygomaticus Minor

A

Elevates lateral portion of the lip

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10
Q

Temporalis

A

Retracts and elevates mandible

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11
Q

Masseter

A

Closes jaw
Elevates mandible

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12
Q

Splenius Capitus

A

Extends the neck

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13
Q

Sternocleidomastoid

A

Flexes neck

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14
Q

Erector spinae

A

Extends vertebral column

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15
Q

External Intercostals

A

Elevates rib cage

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16
Q

Internal Intercostals

A

Depresses rib cage

17
Q

Diaphragm

A

Expands thoracic cavity
Compresses adominopelvic cavity

18
Q

Rectus Abdominus

A

Compresses abdominal cavity
Flexes vertebral column

19
Q

Internal Obliques

A

Flexes or bends spine
Compresses abdomen

20
Q

External Obliques

A

Flexes or bends spine
Compresses abdomen
Depresses ribs

21
Q

Transversus Abdominus

A

Compresses abdomen

22
Q

Pectoralis Minor

A

Elevates ribs
Protracts and depresses scapula

23
Q

Levator Scapulae

A

Rotates, elevates, and retracts scapula

24
Q

Serratus Anterior

A

Protracts scapula
Superior rotation of scapula

25
Trapezius
Rotates scapula posteriorly Retracts and depresses scapula
26
Subclavius
Protracts and depresses shoulder
27
Rhomboid Major
Adducts scapula Performs downward rotation
28
Rhomboid Minor
Adducts scapula Performs downward rotation

Biol 223 Anatomy & Physiology (1 decks)

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