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VET260 > Forelimb Muscles > Flashcards

Forelimb Muscles Flashcards

1
Q

What are the three parts of the brachicephalicus

A

celidobrachialis, cleidocervicalis and cleidomastoidus

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2
Q

What nerve innervates the trapezius

A

accessory nerve

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3
Q

What nerve innervates the omotransvers

A

accessory nerve

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4
Q

What nerve innervates the cutaneous trunci

A

lateral thoracic nerve

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5
Q

What nerve innervates the supraspinatus and infraspinatus

A

suprascapular nerve

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6
Q

What nerve innervates the teres minor

A

axillary

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7
Q

What nerve innervates the subscapularis

A

subscapular and axillary

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8
Q

What nerve innervates the coracobrachialis

A

musculocutaneous

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9
Q

What nerve innervates the teres major

A

axillary

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10
Q

What nerve innervates the deltoid

A

axillary

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11
Q

What nerve innervates the biceps brachii

A

Musculocutaneous

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12
Q

What nerve innervates the brachialis

A

musculocutaneous

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13
Q

What nerve innervates the triceps brachii

A

radial

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14
Q

What nerve innervates all extensors of the antebrachii

A

radial

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15
Q

What nerve innervates the pronator teres

A

median

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16
Q

What nerve innervates the flexor carpi radialis

A

median nerve

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17
Q

What nerve innervates the flexor carpi ulnaris

A

ulnar nerve

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18
Q

What nerve innervates the superficial digital flexor

A

Median nerve

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19
Q

What nerve innervates the deep digital flexor

A

Median and ulnar nerve

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20
Q

What nerve innervates the interosseous

A

ulnar nerve

21
Q

What is the function of the brachicephalicus

A

Protract and move limb towards head or draw head around in flexion

22
Q

What is the action of the trapezius

A

Elevate limb if both cervial and thoracic fibres contract, cervical (caudoventally alligned) contraction swings limb forward

23
Q

What is the function of the omotransverse

A

Pulls scapula to head or draws neck towards ground

24
Q

What is the function of the latissimus dorsi

A

Straps scapula to chest, , retraction of free limb and flexion of shoulder joint. When weight bearing pulls trunk forward

25
Q

F: Superficial pectoral

A

Shoulder fixator, prvents abduction of the limb

26
Q

F: Deep pectoral

A

Limb retractor, slings trunk

27
Q

F: Rhomboid

A

Holds scapula against trunk, may rotate the scapula to retract the limb

28
Q

F: Ventral serrate

A

Slings body, raise thorax. When acting unilaterally can draw neck to that side and can bilaterally raise the neck

29
Q

F: cutaneous truncii

A

Can twitch

30
Q

F: supraspinatus

A

Fixator, acts as a cranial collateral ligament, resists flexion of shoulder isometrically

31
Q

F: Teres minor

A

Fixator, acts as lateral collateral ligament ,flex or extend shoulder joint depending on position

32
Q

F: Infraspinatus

A

Fixator, acts as lateral collateral ligament . flex or extend shoulder joint depending on position

33
Q

F: Subscapularis

A

Medial collateral ligament of the shoulder joint, adducts shoulder,

34
Q

F: Coracobrachialis

A

Mostly an adductor/stabiliser of shoulder but potential weak extensor

35
Q

F: Teres major

A

Flexor of shoulder joint

36
Q

F: Deltoid

A

Flexes shoulder joint and abducts humerus

37
Q

F: Biceps brachii

A

Flexes elbow and fixes shoulder by resisting flexion when standing

38
Q

F: Brachialis

A

Second elbow flexor

39
Q

F: Triceps brachii

A

Extend elbow and long head can flex the shoulder

40
Q

F: Tensor fascia antebrachii

A

Extends the elbow, tenses antebrachial fascia

41
Q

F: ECR

A

Extends carpus and weak flexor of elbow

42
Q

F: Abductor pollices longus

A

Medial deviation of the first digit and paw (adduction), weak carpus extensor and weak pronator

43
Q

F: LDE

A

To extend the joints of the digits

44
Q

F: ECU

A

Further extends already extended carpus and flexes already flexed carpus, also capable of lateral deviation of paw

45
Q

F: Supinator

A

Supinates radius relative to ulna, function largely reduced but still possible in dogs and cats

46
Q

F: Pronator teres

47
Q

F: DDF

A

Flexes carpus and digits, only muscle that can flex distal interphalangeal joint

48
Q

F: Pronator quadratus

A

Turns forepaw inwards in pronation

VET260 (5 decks)

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