1.3 Upper Limbs - Muscle and Fascia Flashcards

1
Q

Adducts and medially rotates humerus

Draws scapula anteriorly and inferiorly

A

Pectoralis major

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2
Q

Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall

A

Pectoralis minor

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3
Q

Anchors and depresses clavicle

A

Subclavius

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4
Q

Protracts scapula and holds it against thoracic wall

Rotates scapula

A

Serratus anterior

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5
Q

Elevates, depresses and retracts scapula; rotate glenoid cavity superiorly

A

Trapezius

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6
Q

Extends, adducts, and medially rotates humerus, raises body towards arms during climbing

A

Latissimus dorsi

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7
Q

Elevates scapula and tilts its glenoid cavity inferiorly by rotating scapula

A

Levator scapulae

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8
Q

Retract scapula and rotate it to depress glenoid cavity

Fixes scapula to thoracic wall

A

Rhomboids

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9
Q

Clavicular part flexes and medially rotates arm
Acromial part abducts arm
Spinal part extends and laterally rotates arm

A

Deltoid

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10
Q

Initiates and assists deltoid in abduction of arm and acts with rotator cuff muscles

A

Supraspinatus

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11
Q

Laterally rotates arm and acts with rotator muscles

A

Infraspinatus and Teres minor

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12
Q

Adducts and medially rotates arm

A

Teres major

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13
Q

Medially rotates arm as part of rotator cuff;

Helps hold head of humerus in glenoid cavity

A

Subscapularis

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14
Q

Supinates forearm and when supine, flexes forearm

Short head resists dislocation of shoulder

A

Biceps brachii

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15
Q

Helps flex and adduct arm;

Resist dislocation of should

A

Coracobrachialis

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16
Q

Flexes forearm in all positions

A

Brachialis

17
Q

Chief extensor of forearm;
Long head resists dislocation of humerus;
Especially importation during adduction

A

Triceps brachii

18
Q

Assists triceps in extending forearm;
Stabilizes elbow joint;
May abduct ulna during pronation

A

Anconeus

19
Q

Pronates and flexes forearm at elbow

A

Pronator teres

20
Q

Flexes and abducts hand at wrist

A

Flexor carpi radialis

21
Q

Flexes hand at wrist and tenses palmar aponeurosis

A

Palmaris longus

22
Q

Flexes and adducts hand at wrist

A

Flexor carpi ulnaris

23
Q

Flexes middle phalanges at proximal interphalangeal joints of middle four digits
Also flexes proximal phalanges at matecarpophalangeal joints

A

Flexor digitorum superficialis

24
Q

Flexes distal phalanges 2 to 5 at distal interphalangeal joints

A

Flexor digitorum profundus

25
Q

Pronates forearm

Deep fibers bind radius and ulna together

A

Pronator quadratus

26
Q

Flexes thumb

A

Flexor policis brevis

27
Q

Abducts thumb, helps oppose it

A

Abductor policis brevis

28
Q

Abducts thumb toward lateral border of palm

A

Abductor policis longus

29
Q

Abducts 5th digit; assists in flexion of its proximal phalanx

A

Abductor digiti minimi

30
Q

Flexes proximal phalanx of 5th digit

A

Flexor dgiti minimi brevis