1.3 Upper Limbs - Muscle and Fascia Flashcards Preview

ANATOMY > 1.3 Upper Limbs - Muscle and Fascia > Flashcards

Flashcards in 1.3 Upper Limbs - Muscle and Fascia Deck (30):
1

Adducts and medially rotates humerus
Draws scapula anteriorly and inferiorly

Pectoralis major

2

Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall

Pectoralis minor

3

Anchors and depresses clavicle

Subclavius

4

Protracts scapula and holds it against thoracic wall
Rotates scapula

Serratus anterior

5

Elevates, depresses and retracts scapula; rotate glenoid cavity superiorly

Trapezius

6

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

Latissimus dorsi

7

Elevates scapula and tilts its glenoid cavity inferiorly by rotating scapula

Levator scapulae

8

Retract scapula and rotate it to depress glenoid cavity
Fixes scapula to thoracic wall

Rhomboids

9

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

Deltoid

10

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

Supraspinatus

11

Laterally rotates arm and acts with rotator muscles

Infraspinatus and Teres minor

12

Adducts and medially rotates arm

Teres major

13

Medially rotates arm as part of rotator cuff;
Helps hold head of humerus in glenoid cavity

Subscapularis

14

Supinates forearm and when supine, flexes forearm
Short head resists dislocation of shoulder

Biceps brachii

15

Helps flex and adduct arm;
Resist dislocation of should

Coracobrachialis

16

Flexes forearm in all positions

Brachialis

17

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

Triceps brachii

18

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

Anconeus

19

Pronates and flexes forearm at elbow

Pronator teres

20

Flexes and abducts hand at wrist

Flexor carpi radialis

21

Flexes hand at wrist and tenses palmar aponeurosis

Palmaris longus

22

Flexes and adducts hand at wrist

Flexor carpi ulnaris

23

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

Flexor digitorum superficialis

24

Flexes distal phalanges 2 to 5 at distal interphalangeal joints

Flexor digitorum profundus

25

Pronates forearm
Deep fibers bind radius and ulna together

Pronator quadratus

26

Flexes thumb

Flexor policis brevis

27

Abducts thumb, helps oppose it

Abductor policis brevis

28

Abducts thumb toward lateral border of palm

Abductor policis longus

29

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

Abductor digiti minimi

30

Flexes proximal phalanx of 5th digit

Flexor dgiti minimi brevis