Lab 5 - Muscle Functions of the Face Flashcards by Kailey DiLaura

Q

Frontalis

A

Raises eyebrows

Wrinkles forehead

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Q

Occipitalis

A

Tenses and retracts scalp

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Q

Orbicularis Oris

A

Compresses and purses lip

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Q

Zygomaticus Major

A

Retracts and elevates the corner of the mouth

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Q

Buccinator

A

Compresses cheek

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Q

Mentalis

A

Elevates and protrudes lip

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Q

Platysma

A

Tenses skin of neck

Depresses lower lip

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Q

Orbicularis Oculi

A

Closes eye

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Q

Masseter

A

Elevates mandible

Closes jaw

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Q

Temporalis

A

Elevates and retracts mandible

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Q

Rectus Abdominis

A

Compresses abdominal wall

Flexes vertebral column

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Q

External Oblique

A

Compresses abdomen

Depresses ribs

Flexes or bends spine

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Q

Internal Oblique

A

Compresses abdomen

Depresses ribs

Flexes or bends spine

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Q

Transversus Abdominis

A

Compresses abdomen

Depresses ribs

Flexes or bends spine

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Q

Sternocleidomastoid

A

Flexes neck

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Q

Diaphragm

A

Expands thoracic cavity

Compresses abdominopelvic cavity

Q

Internal Intercostals

A

Depresses ribs

Q

External Intercostals

A

Elevates ribs

Q

Subclavius

A

Depresses and protracts shoulder

Q

Pectoralis Minor

A

Depresses scapula

Elevates ribs

Q

Serratus Anterior

A

Protracts shoulder

Rotates scapula so glenoid cavity moves superiorly

Q

Trapezius

A

Extends clavicle

Extends and laterally flexes neck

Q

Levator Scapulae

A

Elevates, retracts and rotates scapula

Q

Rhomboideus Major

A

Adducts scapula and performs downward rotation

Q

Rhomboideus Minor

A

Adducts scapula and performs downward rotation

Q

Errector Spinae

A

Extends vertebral column