Action Muscles Flashcards

1
Q

Frontalis

A

raises eyebrows

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2
Q

occipitalis

A

tenses and retracts scalp

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3
Q

orbicularis oris

A

compresses and purses lips (kissing)

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4
Q

zygomaticus major

A

retracts and elevates corners of mouth

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5
Q

levator labii superioris

A

elevates upper lip

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6
Q

depressor labii inferioris

A

depresses lower lip

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7
Q

buccinator

A

compresses cheeks for whistling, blowing, and sucking

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8
Q

mentalis

A

elevates and protrudes lower lip (pouting)

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9
Q

platysma

A

depresses mandible

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10
Q

riosrius

A

draws corner of mouth to the side

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11
Q

orbicularis oculi

A

closes the eye

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12
Q

corrugator supercili

A

pulls brow inferiorly and anteriorly (frowning)

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13
Q

superior rectus

A

eye superiorly and medially

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14
Q

inferior rectus

A

eye inferiorly and medially

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15
Q

lateral rectus

A

eye laterally

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16
Q

medial rectus

A

eye medially

17
Q

superior oblique

A

eye inferiorly and laterally

18
Q

inferior oblique

A

eye superiorly and laterally

19
Q

medial pterygoid

A

elevates and protracts mandible and moves it from side to side

20
Q

lateral pterygoid

A

depresses mandible and moves it from side to side

21
Q

hyoglossus

A

depresses and retracts tongue

22
Q

splenius capitis

A

bilaterally: extend neck
unilaterally: laterally flex and rotate neck to same side as contracting muscle

23
Q

quadratus lumborum

A

laterally flex trunk, raise hip

24
Q

spinalis, longissimus, and iliocostalis groups

A

bilaterally: extend spine
unilaterally: lateral flexion of spine

25
Q

levator ani

A

tenses and supports pelvic floor

26
Q

coccygeus

A

tenses and supports pelvic floor

27
Q

bulbospongiosus

A

helps expel urine, propel semen, assists erection

28
Q

ischiocavernosus

A

maintains erection of penis and clitoris

29
Q

external anal sphincter

A

closes anal opening

30
Q

flexor carpi radialis

A

flexes and abducts wrist

31
Q

flexor carpi ulnaris

A

flexes and adducts wrist

32
Q

extensor carpi radialis longus

A

extends and abducts wrist

33
Q

extensor carpi ulnaris

A

extends and adducts wrist

34
Q

piriformis

A

abducts thigh at hip joint

35
Q

illopsoas

A

flexion at hip