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anatomy > Actions of Muscles (Thoracic Limb) > Flashcards

Actions of Muscles (Thoracic Limb) Flashcards

1
Q

Superficial Pectoral

A

adduct limb (non-weight bearing) & prevent abduction (weight-bearing)

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2
Q

Deep Pectoral

A

Supporting weight: pull trunk cranial, extend shoulder
Not supporting weight: draw limb in caudal, flex shoulder, adduct limb

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3
Q

Brachiocephalicus

A

extend shoulder & draw head/neck lateral

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4
Q

Sternocephalicus

A

draw head/neck lateral

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5
Q

Sternohyoideus

A

pull tongue/larynx caudal

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6
Q

Sternothyroideus

A

Pull tongue/larynx caudal

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7
Q

Omotransversarius

A

Advance limb or flex neck lateral

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8
Q

Trapezius

A

elevate & abduct forelimb

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9
Q

Rhomboideus

A

elevate forelimb & draw scapula against trunk

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10
Q

Latissimus Dorsi

A

draw free limb caudal
flex shoulder

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11
Q

Serratus Ventralis (Cervicis & Thoracis)

A

support trunk & depress scapula

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12
Q

Deltoideus

A

flex shoulder

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13
Q

Infraspinatus

A

extend or flex shoulder

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14
Q

Supraspinatus

A

extend & stabilize shoulder

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15
Q

Teres Minor

A

flex shoulder & rotate lateral
prevent medial rotation when weight bearing

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16
Q

Teres Major

A

Flex shoulder & rotate medial
Prevent lateral rotation when weight bearing

17
Q

Coracobrachialis

A

adduct, extend, stabilize shoulder

18
Q

Subscapularis

A

adduct, extend, medial stabilize shoulder
prevent lateral rotation when weight bearing

19
Q

Triceps Brachii: Long head

A

extend elbow, flex shoulder

20
Q

Triceps Brachii: Lateral/Accessory/Medial head

A

Extend elbow

21
Q

Anconeus

A

extend elbow

22
Q

Biceps Brachii

A

flex elbow, extend shoulder

23
Q

Brachialis

A

flex elbow

24
Q

Brachioradialis

A

supination of antebrachium

25
Q

Extensor Carpi Radialis

A

extend carpus

26
Q

Common Digital Extensor

A

extend joints of 4 main digits & carpus

27
Q

Lateral Digital Extensor

A

extend carpus & joints III,IV,V

28
Q

Extensor Carpi Ulnaris

A

abduct carpal joint, support extended carpus

29
Q

Supinator

A

rotate forearm lateral (supine) to flex elbow

30
Q

Abductor Pollicis Longus

A

abduct first digit & extend carpal joints

31
Q

Pronator Teres

A

rotate forearm medial (prone), flex elbow

32
Q

Flexor Carpi Radialis

A

flex carpus

33
Q

Superficial Digital Flexor

A

flex carpal, metacarpophalangeal, proximal interphalangeal joints of digits II-V

34
Q

Superficial Digital Flexor

A

flex carpal, metacarpophalangeal, proximal interphalangeal joints of digits II-V

35
Q

Superficial Digital Flexor

A

flex carpal, metacarpophalangeal, proximal interphalangeal joints of digits II-V

36
Q

Flexor Carpi Ulnaris

A

flex carpus

37
Q

flex carpal & metacarpophyalangeal joints of digits

A
38
Q

Pronator Quadratus

A

pronate paw

anatomy (11 decks)

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