exam 3 lab Flashcards by Kinzi Nolan

upper trapezius
O
I
A
N

occipital bone, upper cervical spinous processes
outer 1/3 clavicle and acromion
scapular elevation, upward rotation
CN XI spinal accessory n.

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middle trapezius
O
I
A
N

spinous processes of C7-T3
spine of scapula
scapular retraction
CN XI spinal accessory n.

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lower trapezius
O
I
A
N

spinous processes of mid and lower thoracic vertebrae
base of spine of scapula
scapular depression , upward rotation
CN XI spinal accessory n.

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levator scapulae
O
I
A
N

transverse process C1-C4
medial border of scapula
scapular elevation, downward rotation
C3-C4 spinal segments, Dorsal scapular n. C5

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rhomboids major and minor
O
I
A
N

spinous process C7-T5
medial border of scapula
scapular retraction, downward rotation scapular elevation
dorsal scapular n. C5

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primary action of levator scapulae

scapular elevation

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primary action of rhomboid

scapular retraction

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primary action of serratus anterior

scapular protraction

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pectoralis minor
O
I
A
N

anterior surface of ribs 3-5
coracoid process
scapular tilt, scapular depression, downward rotation
Medial pectoral n. C8-T1

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muscles of shoulder girdle

traps
levator scapulae
rhomboids
serratus anterior
pec minor

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deltoids- anterior middle inferior
O
I
A anterior _____ middle____ posterior____
N

lateral 1/3 clavicle acromion and scapular spine
deltoid tuberosity
anterior - shoulder flexion assist w abduction
middle- abduction
posterior - shoulder extension assist w abduction
axillary n. C5-C6

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rotator cuff muscles

supraspinatus
infraspinatus
teres minor
subscapularis

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supraspinatus (stabilizer)
O
I
A
N

supraspinatus fossa
greater tubercle of humerus
shoulder abduction assist w external rotation
suprascapular n. C5-C6

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pec minor primary action

scapular tilt

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infraspinatus
O
I
A
N

infraspinatus fossa
greater tubercle of humerus
shoulder external rotation, assist w horizontal abduction
suprascapular C5-C6

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teres minor
O
I
A
N

lateral border of scapula
greater tubercle of humerus
shoulder external rotation, horizontal abduction
axillary n. C5-C6

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subscapularis
O
I
A
N

subscapular fossa
lesser tubercle of humerus
internal rotation, horizontal adduction
subscapular n. C5-C6

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pectoralis major portions
flexion:
extension:

clavicular portion
sternal portion

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pectoralis major
O
I
A
N

clavicle, sternum
lateral bicipital groove of humerus
shoulder adduction, internal rotation, horizontal adduction, shoulder flexion and extension
lateral and medial pectoral n. C5-T1

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latissimus dorsi
O
I
A
N

spinous process T7-L5 via thoracolumbar fascia , posterior sacrum, iliac crest, lower 3 ribs
medial bicipital groove of humerus
shoulder internal rotation, shoulder adduction, shoulder extension
thoracodorsal n. C6-C8

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teres major
O
I
A
N

lateral border of scapula, inferior angle of scapula
bicipital groove of humerus
shoulder extension, adduction, internal rotation
subscapular n. C5-C7

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coracobrachialis
O
I
A
N

coracoid process of scapula
medial humerus
stabilizes glenohumeral joint to assist w flexion
musculocutaneous n. C5-C7

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serratus anterior
O
I
A
N

lateral upper 8 ribs
medial border of anterior scapula
scapular protraction upward rotation
long thoracic nerve C5-C7

biceps brachii
O
I
A
N

long head supraglenoid tubercle
short head coracoid process

radial tuberosity
elbow flexion, shoulder flexion, forearm supination
musculocutaneous n C5-C6

Brachialis O I A N

distal half of anterior humerus coronoid process, ulnar tuberosity elbow flexion musculocutaneous C5-C6

brachioradialis O I A N

lateral supracondylar ridge styloid process of radius elbow flexion radial n. C5-C6

brachioradialis only does _____ because it does not cross wrist

flexion

triceps brachii O I A N

long head infraglenoid tubercle of scapula medial head posterior humerus lateral head inferior greater tubercle of humerus olecranon process elbow extension, long head shoulder extension radial n C6-C8

anconeus O I A N

lateral epicondyle of humerus lateral and inferior olecranon process elbow extension radial n C6-C8

supinator O I A N

lateral epicondyle of humerus lateral ulna proximal anterior radius forearm supination radial n C6

supinator muscles : ______ primary ______ _____ secondary

supinator biceps brachii

pronator teres O I A N

medial epicondyle of humerus coronoid process of ulna lateral radius at midpoint forearm pronation, assist with elbow flexion median n C5-C6

pronator quadratus O I A N

distal 4th of the ulna distal 1/4 of the radius forearm pronation median n C8,T1

flexor carpi radialis O I A N

medial epicondyle of humerus base of 2nd and 3rd metacarpal wrist flexion radial deviation median n C6-C7

common flexor tendon originated on all

medial epicondyle of humerus

flexor carpi ulnaris O I A N

medial epicondyle of humerus pisiform base of 5th metacarpal wrist flexion ulnar devation ulnar n C8-T1

palmaris longus only found in

80% of people

palmaris longus O I A N

medial epicondyle of humerus palmar fascia wrist flexion median n C6-C7

extensor carpi radialis longus O I A N

lateral epicondyle of humerus base of 2nd metacarpal wrist extension radial devation radial n C6-C7

extensor carpi radialis brevis O I A N

lateral epicondyle of humerus base of 3rd metacarpal wrist extension radial n C6-C7

extensor carpi ulnaris O I A N

lateral epicondyle of humerus base of 5th metacarpal wrist extension ulnar devation radial n C6-C8

flexor digitorum superficialis O I A N

medial epicondyle of humerus sides of middle phalanx of digits 2-5 MCP and PIP flexion assist with wrist flexion median n C7-T1

flexor digitorum profundus - does not cross elbow O I A N

upper 3/4 of ulna distal phalanx digits 2-5 MCP PIP and DIP flexion assist with wrist flexion median ulnar n C8-T1

flexor digiti minimi - intrinsic O I A N

Hamate flexor retinaculum base of proximal phalanx of 5th digit MCP and CMC flexion of 5th digit ulnar n

extensor digitorum O I A N

lateral epicondyle of humerus base of distal phalanx digits 2-5 MCP PIP DIP extension of digits 2-5 assist with wrist extension radial n C6-C8

extensor indicis O I A N

distal ulna base of distal phalanx of digit 2 MCP PIP DIP extension of digit 2 assist with wrist extension radial n

extensor digiti minimi O I A N

lateral epicondyle of humerus distal phalanx digit 5 MCP DIP PIP extension of 5th digit assist with wrist extension radial n

dorsal interossei O I A N

adjacent metacarpal base of proximal phalanx abduction of digits ulnar n

palmar interossei O I A N

digits 2,4,5 metacarpals base of proximal phalanx adduct of digits 2,4,5 ulnar n

abductor digiti minimi O I A N

pisiform flexor carpi ulnaris tendon proximal phalanx of digit 5 abduction of 5th digit ulnar n

flexor pollicis longus O I A N

anterior surface of radius distal phalanx of digit 1 MCP CMC IP flexion median n C8-T1

flexor pollicis brevis O I A N

trapezium flexor retinaculum proximal phalanx of digit 1 CMC MCP flexion of digit 1 median n

extensor pollicis longus O I A N

posterior ulna interosseous membrane base of distal phalanx CMC MCP IP extension of digit 1 radial n C6-C8

extensor pollicis brevis O I A N

posterior distal radius proximal phalanx of digit 1 CMC MCP extension of digit 1 radial n

lumbricals O I A N

flexor digitorum profundus tendon extensor digitorum tendon MCP flexion, PIP and DIP extension median and ulnar n

table top position is

MCP FLEXION PIP AND DIP EXTENSION