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Muscles (insertions - orgins) > Muscles of Shoulder, Arm, and hand > Flashcards

Muscles of Shoulder, Arm, and hand Flashcards

1
Q

Origin

A

Site of muscle attachment that does NOT move

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2
Q

Insertion

A

Site of muscle attachment that DOES move

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3
Q

Trapezius

A

Origin- Occipital bone, C7 - T12
Insertion- Clavicle, acromion process, scapular spine
Action- extend/abduct head, rotate/adduct scapula

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4
Q

Deltoid

A

Origin- Clavicle, acromion process, scapular spine
Insertion- deltoid tuberosity of humerous
Action- abducts arm, medially/laterally rotates arm

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5
Q

Pectoralis Major

A

Origin- Clavicle, sternum, ribs 1-7
Insertion- Crest of greater tuberacle of humerous
Action- Flexion, adduction, medial rotation of arm

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6
Q

Latissimus Dorsi

A

Origin- T7 - S5, illium crest, ribs 10-12
Insertion- Intertubercular groove of humerous
Action- Extends, adducts, medially rotates arm

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7
Q

Biceps Brachii

A 
Origin- 
       Long Head - Superior glenoid fossa
       Short Head - Coracoid Process
Insertion- Radial tuberosity 
Action-  arm/forearm flexion, supination
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8
Q

Triceps Brachii

A

Origin-
Long Head - Infraglenoid tuberosity of scapula
Short Head - lateral and posterior surface of humerus
Insertion- Olecranon process, tuberosity of ulna
Action- extends/adducts arm, extends forearm

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9
Q

Name the 4 muscles of the Rotator Cuff

A

Supraspinatus, infraspinatus, teres minor, subscarpularis

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10
Q

Prime Mover

A

Primary muscle responsible for movement

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11
Q

Synergist

A

muscles that assist the prime mover

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12
Q

Antagonist

A

Muscles that oppose the prime mover

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13
Q

Fixator

A

Prevents movement of bone that the prime mover is attached to

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14
Q

Intrinsic Muscle

A

Contained within region of movement

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15
Q

Extrinsic Muscle

A

Found outside region of movement responsible for

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16
Q

Pectoralis Minor

A

Depresses glenoid cavity, raises ribs 3-5

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17
Q

Supraspinatus

A

Abducts arm, stabilizes shoulder

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18
Q

Infraspinatus

A

Laterally rotates arm, stabilizes shoulder

19
Q

Teres Major

A

medially rotates arm, stabilizes shoulder

20
Q

Teres Minor

A

Laterally rotates, stabilizes shoulder

21
Q

Subscapularis

A

Medially Rotates Arm, stabilizes shoulder

22
Q

Brachioradialis

A

flex forearm

23
Q

Coracobrachialis

A

adduction arm

24
Q

Brachialis

A

forearm flexion

25
Q

Supinator

A

Origin- lateral epicondyle humerus,
Insertion- proximal radius
Action- supinates hand

26
Q

Pronator Teres

A

Origin- medial epicondyle of humerus, coronoid process of ulna
Insertion- lateral, middle shaft of radius
Action- pronates hand, flex forearm

27
Q

Pronator Quadratus

A

pronates hand

28
Q

flexor carpi radialis

A

flexes, abducts hand

29
Q

flexor carpi ulnaris

A

flexes, adducts hand

30
Q

palmaris longus

A

Origin- medial epicondyle of humerus
Insertion- palmar aponeurosis
Action- flexes hand

31
Q

flexor digitum superficialis

A

Origin-medial epicondyle of humerus, proximal ulna & radius
Insertion- middle phalanges (2-5)
Action- flexes middle & proximal phalanges, flexes hand

32
Q

flexor digitum profundus

A

flexes phalanges and hand

33
Q

flexor pollicis longus

A

flexes thumb

34
Q

Flexor pollicis brevis

A

Flex thumb

35
Q

Abductor pollicis brevis

A

Abduct thumb

36
Q

Opponens pollicis

A

Origin- trapezium
Insertion- 1st metacarpel
Action- opposes thumb

37
Q

Extensor carpi radialis longus

A

extends & abducts hand

38
Q

Extensor carpi radialis brevis

A

extends & abducts hand

39
Q

Extensor carpi ulnars

A

extends & adducts hand

40
Q

Extensor digitorum

A

O- lateral epicondyle of humerous
I- midal and distal phalanges 2-5
A- extends phalanges & extends hand

41
Q

Abductor pollicis longus

A

abducts thumb

42
Q

Extensor pollicis longus

A

extends thumb

43
Q

Extensor pollicis brevis

A

extends thumb

Muscles (insertions - orgins) (5 decks)

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