upper extremities OIAN Flashcards

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1
Q

Pectoralis Major

A

O: medial clavicle, sternum, and costal cartilages of ribs 1-6

I: greater tubercle of the humerus

A: All fibers: shoulder adduction, internal rotate shoulder
Up- flex shoulder and horizon ADD
Low- extend shoulder

N: medial and lateral pectoral nerves

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2
Q

Pectoralis Minor

A

O: ribs 3-5

I: coracoid process of the scapula

A: scapular depression, protraction, & downward rotation

N: medial pectoral nerve

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3
Q

Serratus Anterior

A

O: external surfaces ribs 1-9

I: anterior surface & medial border of scapula

A: scapular upward rotation protraction
- closed chain: medal border scapula against rib cage

N: long thoracic nerve

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4
Q

Deltoid

A

O: lateral 1/3 clavicle, acromion process, and spine of the scapula

I: deltoid tuberosity of the humerus

A: ant- shoulder ABD, flexion, IR & horizontal add
mid- shoulder abduction
post- shoulder ABD, extension, ER, & horizontal abduction

N: Axillary nerve

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5
Q

Trapezius

A

O: external occipital protuberance, medial superior nuchal line, ligamentum nuchae, spinous processes of C7-T12

I: lateral 1/3 clavicle & scapular spine/acromion process

A: up: Bilateral- cervical extension
Unilateral- cervical sidebend to the same side, contralateral cervical rotation, scapular elevation & upward rotation
mid: scapular retraction & stabilization
Low: scapular upward rotation & depression

N: Accessory Nerve

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6
Q

Levator Scapulae

A

O: tansverse processes of C1-C4

I: medial border of scapula between the superior angle and superior portion of spine of scapula

A: Bilateral- cervical extension
Unilateral- scapular elevation and downward rotation; cervical sidebend & ipsilateral cervical rotation

N: cervical spinal nerve
dorsal scapular nerve

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7
Q

Rhomboid Major & Minor

A

O: spinous processes C7-T5

I: medial border of the scapula between spine of Scapula & inferior angle

A: retraction, scapular elevation, and downward rotation

N: dorsal scapular nerve

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8
Q

Latissimus Dorsi

A

O: inferior angle of scapula, spinous processes of T6-T12, ribs 9-12, thoracolumbar fascia, posterior iliac crest

I: bicipital groove of the humerus

A: shoulder extensions, internal rotation, & adduction

N: thoracodorsal nerve

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9
Q

Teres Major

A

O: lower 1/3 lateral border of the scapula near the inferior angle

I: crest below the lesser tubercle of the humerus

A: shoulder extension, internal rotation, & adduction

N: subscapular

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10
Q

Triceps Brachii

A

O: Long- infra glenoid tubercle of the scapula
lateral- posterior humerus superior the radial
groove
medial-posterior humerus inferior the radial
groove

I: olecranon process of the ulna

A: Long- shoulder extension
All- elbow extension

N: radial

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10
Q

coracobrachialis

A

O: coracoid process of the scapula

I: medial mid-humerus

A: shoulder flexion

N: musculocutaneous

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11
Q

Infraspinatus

A

O: infraspinous fossa of the scapula

I: greater tubercle of the humerus

A: shoulder external rotation & ADD. stabilizes the humeral head in the glenoid cavity

N: suprascapular

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11
Q

Supraspinatus

A

O: supraspinous fossa of the scapula

I: greater tubercle of the humerus

A: shoulder ABD, stabilizes humeral head in glenoid cavity

N: suprascapular

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12
Q

Teres Minor

A

O: upper 2/3 lateral border of the scapula

I: greater tubercle of the scapula

A: shoulder external rotation & ADD. stabilizes humeral head in the glenoid cavity

N: axillary

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13
Q

Subscapularis

A

O: subscapular fossa of the scapula

I: lesser tubercle of the humerus

A: shoulder internal rotation. stabilizes humeral head in the glenoid cavity

N: subscapular

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14
Q

Biceps Brachii

A

O: Long- supraglenoid tubercle of the scapula
Short- coracoid process of the scapula

I: radial tuberosity of the radius

A: shoulder flexion, elbow flexion forearm supination

N: musculocutaneous

15
Q

Brachialis

A

O: distal 1/2 of the humerus

I: coronoid process and ulnar tuberosity of the ulna

A: elbow flexion

N: musculocutaneous

16
Q

Brachioradialis

A

O: lateral supracondylar ridge of humerus

I: styloid process of the radius

A: elbow flexion, pronates, & supinates to neutral

N: radial

16
Q

Pronator Teres

A

O: medial epicondyle of the humerus & coronoid process of the ulna

I: mid-lateral surface of radius

A: forearm pronation & elbow flexion

N: median

17
Q

Flexor Carpi Radialis

A

O: medial epicondyle of the humerus

I: bases of the 2nd & 3rd metacarpals

A: 1- wrist flexion & radial deviation
2- elbow flexion

N: median

18
Q

Flexor Carpi Ulnaris

A

O: medial epicondyle of the humerus

I: pisiform & base of 5th metacarpal bone

A: 1- wrist flexion and ulnar deviation
2- elbow flexion

N: ulnar

18
Q

Palmaris Longus

A

O: medial epicondyle of the humerus

I: palmar aponeurosis & flexor retinaculum

A: 1- wrist flexion
2- elbow flexion

N: median

19
Q

Flexor Pollicis Longus

A

A: flexes the CMC & MCP & IP joint of the thumb & wrist

N: median

19
Q

Flexor Digitorum Profundus

A

O: anterior/medial surface of proximal ulna

I: base of distal phalanx of fingers 2-5

A: 1- metacarpophalangeal, proximal interphalangeal & distal interphalangeal joint flexion of fingers 2-5
2- wrist flexion

N: 2nd & 3rd fingers: median nerve
4th & 5th fingers: ulnar nerve

19
Q

Flexor Digitorum Superficialis

A

O: medial epicondyle of the humerus, coronoid process of the ulna, & the proximal radius

I: middle phalanx of digits 2-5

A: metcarpalphalangeal & proximal interphalangel joint flexion of fingers 2-5, & wrist flexion

N: median

20
Q

Pronator Quadratus

A

O: medial-anterior distal ulna

I: lateral-anterior distal radius

A: forearm pronation

N: median

21
Q

Supinator

A

O: lateral epicondyle of the humerus and adjacent ulna

I: anterior proximal-lateral radius

A: supinates the forearm

N: radial

22
Q

Extensor Carpi Radialis Longus

A

O: lateral epicondyle

I: base of 2nd metacarpal

A: wrist extension and radial deviation
assists w/ elbow flexion when in pronation

N: radial

22
Q

Extensor Carpi Radialis Brevis

A

O: lateral epicondyle of the humerus

I: base of 3rd metacarpal

A: wrist extension, radial deviation, & assists w elbow flexion when in pronation

N: radial

22
Q

Extensor Carpi Ulnaris

A

O: lateral epicondyle of the humerus

I: base of 5th metacarpal

A: wrist extension & ulnar deviation

N: radial nerve

23
Q

Extensor Digitorum

A

O: lateral epicondyle of the humerus

I: bases of distal phalanx of fingers 2-5

A: MCP, PIP, DIP joint extension fingers 2-5 & wrist flexion

N: radial

24
Q
A