Muscle Actions Flashcards

1
Q

Masseter

A

elevation of the mouth, protraction of the mandible

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2
Q

Splenius

A

Extends head and neck

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3
Q

Sternocleidomasteoid

A

Flexion of head and neck; rotation of head to opposite side

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4
Q

Pectoralis Major

A

Medial rotation and addiction of arm at the shoulder

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5
Q

Coracobrachialis

A

Flexes and adducts arm at shoulder

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6
Q

Lastissimus Dorsi

A

Adduction, medial rotation, extension of arm at shoulder

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7
Q

Deltoid

A

Flexion, medial rotation, abduction of arm at shoulder

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8
Q

Infraspinatus

A

Lateral rotation at shoulder

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9
Q

Supraspinatus

A

Abduction of arm at shoulder

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10
Q

Teres Major

A

Adduction, medial rotation, extension of arm at shoulder

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11
Q

Teres Minor

A

Lateral rotation, weak adduction of arm at shoulder

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12
Q

Subscapularis

A

Medial rotation of arm at shoulder

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13
Q

Pectoralis Minor

A

Draws scapula forward and down

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14
Q

Serratus Anterior

A

abduction and upward rotation of scapula

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15
Q

Trapezius

A

Upper rotation of scapula, extension of neck

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16
Q

Rhomboideus

A

Retraction and elevation of scapula

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17
Q

Triceps Brachii

A

Extend arm and forearm

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18
Q

Biceps Brachii

A

Flex arm at shoulder

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19
Q

Brachialis

A

Flexes forearm

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20
Q

Extensor Carpi Radialis

A

Extension and abduction of wrist

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21
Q

Extensor Carpi Ulnaris

A

Extends and adducts wrist

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22
Q

Flexor Carpi Radialis

A

Flexes and adducts wrist

23
Q

Flexor Carpi Ulnaris

A

Flexes and adducts wrist

24
Q

Flexor Digitorum

A

Flexes distal phalanges, flexes hand

25
Q

Extensor Digitorum

A

Extends medial 4 phalanges, extends hand at wrist

26
Q

Rectus Abdominus

A

Flexes vertebral column, compress abdomin

27
Q

External Oblique

A

Flexes vertebral column, rotates vertebral column, laterally flexes vertebral column

28
Q

Internal Oblique

A

Flexes, rotates, lateral flexion of vertebral column

29
Q

Transverse Abdominus

A

Compresses abdomin

30
Q

Tensor fascia lata

A

Stabilizes hip by putting tension on IT band

31
Q

Gluteus Maximus

A

Extends and abducts hip

32
Q

Gluteus Medius

A

Major abductor of thigh

33
Q

Adductor Longus

A

Adduction and flexion of thigh

34
Q

Adductor Brevis

A

Adduction and flexion of thigh

35
Q

Adductor Magnus

A

Flex, extend, and adduction of thigh

36
Q

Psoas Major

A

Flexes torso and thigh

37
Q

Iliacus

A

Flexes torso and thigh

38
Q

Biceps Femoris

A

Flexes the knee, extends the hip

39
Q

Semitendonosis

A

Flexes knee, extends hip

40
Q

Semimembranosis

A

Flexes knee, extends hip

41
Q

Gracilis

A

Flexes knee, adducts the hip

42
Q

Sartorius

A

Flex and lateral rotation of hip, flex knee

43
Q

Rectus Femoris

A

Extends knee

44
Q

Vastus Lateralis

A

Extends knee

45
Q

Vastus Medialis

A

Extends knee

46
Q

Vastus Intermedius

A

Extends knee

47
Q

Gastrocnemius

A

Plantarflexion

48
Q

Soleus

A

Plantarflexion

49
Q

Tibialis Anterior

A

Dorsi flexion

50
Q

Flexor digitorum Longus

A

Plantarflexion, flexes 2-5 toes

51
Q

Peroneus Longus

A

E version and plantarflexion

52
Q

Peroneus Tertius

A

Eversion and dorsiplexion

53
Q

Extensor Digitorum Longus

A

Extends toes 2-5, Dorsi flexion