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My Anatomy > Muscles Practical 1 > Flashcards

Muscles Practical 1 Flashcards

1
Q

Sternocleidomastoid

A

Flexes, rotates, and laterally flexes head and neck

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2
Q

Splenius capita

A

Extends/hyperextends head

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3
Q

Scalene a

A

Elevates rib cage

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4
Q

Trapezius

A

Elevates scapula; depresses scapula; retracts scapula; rotates scapula up
Origin: occipital region and spines of C2-T12
Insertion: scapular spine, acromion, clavicle

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5
Q

Masseter

A

Elevates mandible; protrudes mandible

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6
Q

Temporalis

A

Elevates mandible; retracts mandible

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7
Q

Frontal is

A

Elevates eyebrows

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8
Q

Occipitalis

A

Pulls scalp posteriorly

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9
Q

Auriculars

A

Moves ears

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10
Q

Natalia

A

Widens nostrils; depresses/compresses nasal cartilage

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11
Q

Orbicularis oculi

A

Closes eyelid

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12
Q

Orbicularis oris

A

Compresses lips; everts lips

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13
Q

Levator labii superioris

A

Elevates upper lip; everts upper lip

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14
Q

Depressor labii

A

Depresses lower lip

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15
Q

Depressor anguli

A

Depresses angle of lips

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16
Q

Mentalis

A

Protrudes lower lip

17
Q

Zygomaticus

A

Elevates upper lip

18
Q

Risorius

A

Draws lips laterally

19
Q

Buccinator

A

Compresses cheeks

20
Q

Latissimus dorsi

A

Abducts shoulder; extends shoulder; medially rotates shoulder
Origin: lower vertebral column and iliac crest
Insertion: anterior lesser tubercle of humerus

21
Q

External intercostals

A

Expands ribcage

22
Q

Internal intercostals

A

Compress ribcage

23
Q

Diaphragm

A

Increase thoracic volume

24
Q

Rectus abdominis

A

Flexes lumbar vertebrae and compresses abdomen

25
Q

Transversus abdominis

A

Flex lumbar vertebrae; laterally flex lumbar vertebrae; compress abdomen

26
Q

External oblique/internal oblique

A

Rotate lumbar vertebrae; flex lumbar vertebrae; laterally flex lumbar vertebrae; compress abdomen

27
Q

Platysma

A

Tenses skin of neck; depresses angle of lips

My Anatomy (6 decks)

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