Muscle Origin/Insertion Flashcards Preview

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Flashcards in Muscle Origin/Insertion Deck (47):
0

Trapezius

Origin: occiput, nuchal ligament, spinous process of thoracic vertebra
Insertion: scapular spine, acromion

1

Latissimus dorsi

Origin: spinous process of T1-L3
Insertion: intertubercular groove on humerous

2

Rhomboideus major and minor

Origin: upper thoracic spinous process
Insertion: vertebral border of scapula

3

Levator scapulae

Origin: transverse process of C1-4
Insertion: vertebral border of scapula between superior angle and base of scapular spine

4

Serratus anterior

Origin: ribs 1-8 or 9
Insertion: vertebral border of scapula

5

Teres major

Origin: lower axillary border of scapula
Insertion: medial lip of inter tubercular groove on humerus

6

Deltoideus

Origin: clavicle, acromion, scapular spine
Insertion: deltoid tuberosity on humerus

7

Supraspinatus

Origin: supraspinous fossa
Insertion: greater tubercle of humerus

8

Teres minor

Origin: middle of axillary border of scapula
Insertion: greater tubercle of humerus

9

Subscapularis

Origin: subscapular fossa
Insertion: lesser tubercle of humerus

10

Pectoralis major

Origin:
-clavicular head: medial half of clavicle
-sternocostal head: ribs 2-6, costal margin of sternum
Insertion: lateral lip of intertubercular groove of humerus

11

Pectoralis minor

Origin: ribs 2-5
Insertion: coracoid process of scapula

12

Coracobrachialis

Origin: coracoid process of scapula
Insertion: proximal shaft of humerus

13

Biceps brachii

Origin:
-long head: supraglenoid tubercle of the scapula
-short head: coracoid process of scapula
Insertion: bicipital tuberosity of radius (non functionally attached to ulnar tuberosity via bicipital aponeurosis)

14

Brachialis

Origin: distal two thirds of humeral shaft
Insertion: ulnar tuberosity of ulna

15

Triceps brachii

Origin:
-long head: infraglenoid tubercle of scapula
-medial head: posterior surface of medial border of humerus
-lateral head: posterior surface of lateral border of humerus
Insertion: olecranon

16

Pronator teres

Origin: medial epicondyle of humerus, coronoid process of ulna
Insertion: midshaft radius

17

Flexor carpi radialis

Origin: medial epicondyle of humerus
Insertion: base of 2nd and 3rd metacarpals

18

Palmaris longus

Origin: medial epicondyle of humerus
Insertion: palmar aponeurosis

19

Flexor digitorum superficialis

Origin: medial epicondyle of humerus, coronoid process do ulna, anterior border of proximal radius
Insertion: base of middle phalanges 2-5

20

Pronator quadratus

Origin: distal portion of ulnar shaft
Insertion: distal portion of radial shaft

21

Flexor pollicis longus

Origin: proximal half of radius and adjacent interosseus membrane
Insertion: 1st digit phalanx

22

Flexor digitorum profundus

Origin: proximal two thirds of ulnar shaft and adjacent interosseous membrane
Insertion: base of distal phalanx of digits 2-5

23

Flexor carpi ulnaris

Origin: medial epicondyle of humerous, medial side of olecranon, proximal 2/3 of ulnar shaft
Insertion: pisiform, hamate, base of 5th metacarpal, flexor retinaculum

24

Anconeus

Origin: lateral epicondyle of humerous
Insertion: lateral side of olecranon

25

Brachioradialis

Origin: lateral supracondylar ridge of humerous
Insertion: lateral surface of distal radius

26

Extensor carpi radialis longus

Origin: lateral supracondylar ridge of humerous
Insertion: dorsal surface of base of second metacarpal

27

Extensor carpi radialis brevis

Origin: lateral epicondyle of humerous
Insertion: dorsal surface of base of 3rd metacarpal

28

Extensor digitorum

Origin: lateral epicondyle of humerous
Insertion: dorsal digital expansion hoods of digits 2-5

29

Extensor digit minimi

Origin: lateral epicondyle of humerous
Insertion: dorsal digital expansion hood of digit 5

30

Extensor carpi ulnaris

Origin: lateral epicondyle of humerous
Insertion: medial side of base of 5th metacarpal

31

Supinator

Origin: lateral epicondyle of humerous, supinator crest of ulna
Insertion: lateral surface of proximal radius

32

Extensor indicis

Origin: posterior surface of distal ulna
Insertion: dorsal digital expansion hood of digit 2

33

Abductor pollicis longus

Origin: posterior surfaces of radius and ulna
Insertion: lateral side of the base of 1st metacarpal, trapezium

34

Extensor pollicis brevis

Origin: posterior surface of distal radius
Insertion: base of thumb's proximal phalanx

35

Extensor pollicis longus

Origin: posterior surfaces of middle ulna
Insertion: base of thumbs distal phalanx

36

Abductor pollicis brevis

Origin: flexor retinaculum, trapezium, scaphoid
Insertion: base of 1st dig it's proximal phalanx

37

Flexor pollicis brevis

Origin: flexor retinaculum, trapezium, trapezoid, capitate
Insertion: base of 1st digit's proximal phalanx

38

Opponents pollicis

Origin: trapezium, flexor retinaculum
Insertion: lateral border of 1st metacarpal

39

Abductor digit minimi

Origin: pisiform, tendon of flexor carpi ulnaris
Insertion: base of 5th digits proximal phalanx

40

Flexor digit minimi

Origin: hamate hamulus, flexor retinaculum
Insertion: base of 5th digit's proximal phalanx

41

Opponents digiti minimi

Origin: hamate hamulus, flexor retinaculum
Insertion: midshaft of 5th metacarpal

42

Palmaris brevis

Origin: flexor retinaculum, medial palmar aponeurosis,
Insertion: skin of hypothenar eminence

43

Lumbericals

Origin: tendons of flexor digitorum profoundis in palm
Insertion: extensor hoods digits 2-5

44

Dorsal interossei (4)

Origin: shafts of adjacent metacarpals
Insertion: base of proximal phalanx, dorsal expansion hoods digits 2-4

45

Palmar interossei (3)

Origin: medial side of 2nd metacarpal shaft, lateral side of 4th and 5th metacarpal shafts
Insertion: base of proximal phalanx digits 2, 4, 5

46

Adductor pollicis

Origin:
-oblique head: capitate, 2-3rd metacarpals
-transverse head: 3rd metacarpal
Insertion: base of 1st proximal phalanx