Skeletal muscles Flashcards by Shelby Last

Q

Frontalis 2

A

wrinkles forehead

* raises eyebrows

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Q

Occipitalis 1

A

*tenses and retracts scalp

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Q

Orbicularis oculi1 1

A

*closes eyes

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Q

Zygomaticus major1 1

A

*retracts and elevates corner of mouth

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Q

Buccinator 1

A

*compresses cheek

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Q

Massater 2

A

closes jaw

* elevates mandible

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Q

Orbicularis oris 1

A

*compresses and purses lip

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Q

Mentalis 1

A

*elevates and protrudes lip

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Q

Platysma 3

A

tenses skin of neck
depresses mandible
pulls lower lip down

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Q

Temporalis 1

A

*elevates mandible

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Q

Occipitofrontalis 3

A

retracts and tenses scalp
wrinkles forehead
raises eyebrows

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Q

Rectus abdominus 2

A

depresses rib

* flexes vertebral column

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Q

external oblique 3

A

depresses ribs
compresses abdomen
flexes/bend spine

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Q

internal oblique 3

A

depresses ribs
compresses abdomen
flexes/ bends spine

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Q

transverse abdominus 3

A

depresses ribs
compresses abdomen
flexes/ bends spine

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Q

Sternocleidomastoid 1

A

*flexes neck

Q

Diaphragm 2

A

expands thoracic cavity

* compresses abdominopelvic cavity

Q

Internal Intercostals 1

A

*depresses ribs

Q

External intercostals 1

A

*elevates ribs

Q

Subclavius 1

A

*depresses and protracts shoulder

Q

Pectoralis minor 2

A

depresses and protracts shoulder

* rotates scapula so glenoid fossa moves inferiorly

Q

Serratus anterior 2

A

rotates scapula so glenoid fossa moves superiorly

* protracts shoulder

Q

Trapezius 2

A

extends clavicle

* extends neck

Q

Levator scapulae 1

A

*elevates scapula

Q

Rhomboid major 1

A

*adducts scapula and performs downward rotation

Q

Rhomboid minor 1

A

*adducts scapula and performs downward rotation

Q

Iliocostalis 1

A

*extends vertebral column

Q

Longissimus 1

A

*extends vertebral column

Q

Spinalis thoracis 1

A

*extends vertebral column