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Anatomy > Upper Limb Muscle Actions > Flashcards

Upper Limb Muscle Actions Flashcards

1
Q

Pectoralis major action

A

Adducts and medially rotates humorous

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2
Q

Pectoralis minor

A

Stabilized scapula

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3
Q

Subclavious

A

Anchors and depresses clavical

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4
Q

Serrated anterior

A

Protracts scapula holds it against thoracic wall + rotates scapula

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5
Q

Trapezius

A

Descending- elevates
Ascending- depressed
All+middle retract scapula

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6
Q

Latissimus Dorsi

A

Extends, adducts, medially rotates

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7
Q

Levator scapulae

A

Elevates scapula

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8
Q

Rhomboid minor and major

A

Retract scapula

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9
Q

Deltoid

A

Clavicular: flex arm, medially rotate
Acromial: abduct (15-90 deg)
Spinal: Extend, laterally rotate arm

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10
Q

Teres major

A

Adduct and medically rotate arm

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11
Q

Teres minor

A

Laterally rotate arm

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12
Q

supraspinatus

A

Initiate abduction first 15 degrees

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13
Q

Infaspinatus

A

Laterally rotate arm

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14
Q

Subscapularis

A

Medically rotate arm

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15
Q

Biceps brachii

A

Flexes arm, supinates

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16
Q

Coracobrachialis

A

Flex, adduct

17
Q

Brachial is

A

Main arm flexor

18
Q

Triceps brachii

A

Extensors

19
Q

Flexor digitorum superficialis

A

Flexes phalanges at proximal interphalangeal joints of middle four digits

20
Q

Pronator Teres

A

Pronates forearm

21
Q

Palmaris longus

A

Flexes hand at wrist and tenses palmar aponeurosis

22
Q

Flexor carpi ulnaris

A

Flexes and adduced hand at wrist

23
Q

Flexor carpi radialis

A

Flexes and abducts hand at wrist

24
Q

Flexor digitorum profundus

A

Flexes distal phalanges at distal interphalangeal joints

25
Q

Flexor pollicus longus

A

Flexes thumb

26
Q

Pronator quadratis

A

Pronates forearm

27
Q

Brachioradialis

A

Week flexor of forearm

28
Q

Extensor carpi radialis longus/ brevis

A

Extend and abduct hand at wrist joint

29
Q

Extensor digitorum

A

Extends medial four digits primarily at metacarpophalangeal joint

30
Q

Extensor digiti minimi

A

Extends pinky at metacarpophalangeal joint

31
Q

Extensor carpi ulnaris

A

Extends and adducts wrist

32
Q

Supinator

A

Supinates forearm

33
Q

Extensor indicis

A

Extends second digit helps extend hand at wrist

34
Q

Abductor pollicus

A

Abducts thumb and extends at carpometacarpal joint

35
Q

Extensor pollicus longus/brevis

A

Extends distal and proximal phalanx of thumb

Anatomy (6 decks)

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