MOINA UPPER EXTREMITIES

Deltoid

O: Lateral third of clavicle, acromion, spine of scapula

I: Middle of lateral surface of shaft of humerus

NS: Axillary nerve

NR: C5, C6

A: Abducts arm; anterior fibers flex and medially rotate arm ; posterior fibers extend and laterally rotate arm

Supraspinatus

O: Supraspinous fossa of scapula

I: Greater tuberosity of humerus; capsule of shoulder joint

NS: Suprascapular nerve

NR: C4, 5, 6

A: Abducts arm and stabilizes shoulder joint

Infraspinatus

O: Infraspinous fossa of scapula

I: Greater tuberosity of humerus; capsule of shoulder joint

NS: Suprascapular nerve

NR: (C4), 5, 6

A: Laterally rotates arm and stabilizes shoulder joint

Teres Major

O: Lower third of lateral border of scapula

I: Medial lip of bicipital groove of humerus

NS: Lower subscapular nerve

NR: C6, 7

A: Medially rotates and adducts arm and stabilizes shoulder joint

Teres Minor

O: Upper two thirds of lateral border of scapula

I: Greater tuberosity of humerus; capsule of shoulder joint

NS: Axillary Nerve

NR: (C4), C5, 6

A: Laterally rotates arm and stabilizes shoulder joint

Subscapularis

O: Subscapular fossa

I: Lesser tuberosity of humerus

NS: Upper and lower subscapular nerves

NR: C5, 6, 7

A: Medially rotates arm and stabilizes shoulder joint

Pectoralis Major

O: Clavicle, sternum, and upper six costal cartilages

I: Lateral lip of bicipital groove of humerus

NS: Medial and lateral pectoral nerves from brachial plexus

NR: C5, 6, 7, 8 ; T1

A: Adducts arm and rotates it medially; clavicular fibers also flex arm

Pectoralis minor

O: 3rd, 4th, and 5th ribs

I: Coracoid process of scapula

NS: Medial pectoral nerve from brachial plexus

NR: C6, 7, 8

A: Depresses point of shoulder; if the scapula is fixed, it elevates the ribs of origin

Subclavius

O: 1st costal cartilage

I: Clavicle

NS: Nerve to subclavius from upper trunk of brachial plexus

NR: C5, 6

A: Depresses the clavicle and steadies this bone during movements of the shoulder girdle

Serratus Anterior

O: Upper eight ribs

I: Medial border and inferior angle of scapula

NS: Long thoracic nerve

NR: C5, 6, 7

A: Draws the forward anterior around the thoracic wall; rotates scapula

Trapezius

O: Occipital bone, ligamentum nuchae, spine of 7th cervical vertebra, spines of all thoracic vertebrae

I: Upper fibers into lateral third of clavicle; middle and lower fibers into acromion and spine of scapula

NS: Spinal part of accessory nerve (motor) and C3 and 4 (sensory)

NR: XI cranial nerve (spinal part)

A: Upper fibers elevate the scapula; middle fibers pull scapula medially; lower fibers pull medial border of scapula downward

Latissimus Dorsi

O: Iliac crest, lumbar fascia, spines of lower six thoracic vertebrae, lower three or four ribs, and inferior angle of scapula

I: Floor of bicipital groove of humerus

NS: Thoracodorsal nerve

NR: C6, 7, 8

A: Extends, adducts, and medially rotates the arm

Levator Scapulae

O: Transverse processes of 1st four cervical vertebrae

I: Medial border of scapula

NS: C3 and 4 dorsal scapular nerve

NR: C3, 4, 5

A: Raises medial border of scapula

Rhomboid Minor

O: Ligamentum nuchae and spines of 7th cervical and 1st thoracic vertebrae

I: Medial border of scapula

NS: Dorsal scapular nerve

NR: C4, 5

A: Raises medial border of scapula upward and medially

Rhomboid Major

O: Second to 5th thoracic spines

I: Medial border of scapula

NS: Dorsal scapular nerve

NR: C4, 5

A: Raises medial border of scapula upward and medially

Biceps Brachii

(Long head)

O: Supraglenoid tubercle of scapula

I: Tuberosity of radius and bicipital aponeurosis into deep fascia of forearm

NS: Musculocutaneous nerve

NR: C5, 6

A: Supinator of forearm and flexor of elbow joint; weak flexor of shoulder joint

(Short head)

O: Coracoid process of scapula

I: Tuberosity of radius and bicipital aponeurosis into deep fascia of forearm

NS: Musculocutaneous nerve

NR: C5, 6

A: Supinator of forearm and flexor of elbow joint; weak flexor of shoulder joint

Coracobrachialis

O: Coracoid process of scapula

I: Medial aspect of shaft of humerus

NS: Musculocutaneous nerve

NR: C5, 6, 7

A: Flexes arm and also weak adductor

Brachialis

O: Front of lower half of humerus

I: Coronoid process of ulna

NS: Musculocutaneous nerve

NR: C5, 6

A: Flexor of elbow joint

Triceps

(Long head)

O: Infraglenoid tubercle of scapula

I: Olecranon process of ulna

NS: Radial nerve

NR: C6, 7, 8

A: Extensor of elbow joint

(Lateral head)

O: Upper half of posterior surface of shaft of humerus

I: Olecranon process of ulna

NS: Radial nerve

NR: C6, 7, 8

A: Extensor of elbow joint

(Medial head)

O: Lower half of posterior surface of shaft of humerus

I: Olecranon process of ulna

NS: Radial nerve

NR: C6, 7, 8

A: Extensor of elbow joint

Pronator Teres

(Humeral head)

O: Medial epicondyle of humerus

I: Lateral aspect of shaft of radius

NS: Median nerve

NR: C6. 7

A: Pronation and flexion of forearm

(Ulnar head)

O: Medial border of coronoid process of ulna

I: Lateral aspect of shaft of radius

NS: Median nerve

NR: C6. 7

A: Pronation and flexion of forearm

Pronator Quadratus

O: Anterior surface of shaft of ulna

I: Anterior surface of shaft of radius

NS: Anterior interosseous branch of median nerve

NR: C8; T1

A: Pronates forearm

Brachioradialis

O: Lateral supracondylar ridge of humerus

I: Base of styloid process of radius

NS: Radial nerve

NR: C5, 6,7

A: Flexes forearm at elbow joint; rotates forearm to the midprone position

Flexor Carpi Radialis

O: Medial epicondyle of humerus

I: Bases of second and third metacarpal bones

NS: Median Nerve

NR: C7

A: Flexes and abducts hand at wrist joint

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Palmaris Longus

O: Medial epicondyle of humerus

I: Flexor retinaculum and palmar aponeurosis

NS: Median nerve

NR: C7, C8

A: Flexes hands

Flexor Carpi Ulnaris

(Humeral head)

O: Medial epicondyle of humerus

I: Pisiform bone, hook of the hamate, base at fifth metacarpal bone

NS: Ulnar nerve

NR: C8; T1

A: Flexes and adducts hand at wrist joint

(Ulnar head)

O: Medial aspect of olecranon process

and posterior border of ulna

I: Pisiform bone, hook of the hamate, base at fifth metacarpal bone

NS: Ulnar nerve

NR: C8; T1

A: Flexes and adducts hand at wrist joint

Flexor Digitorum Superficialis

(Humeroulnar head)

O: Medial epicondyle of humerus; medial border of coronoid process of ulna

I: Middle phalanx of medial four fingers

NS: Median nerve

NR: C7, 8; T1

A: Flexes middle phalanx of fingers and assists in flexing proximal phalanx and hand

(Radial head)

O: Oblique line on anterior surface of shaft of radius

I: Middle phalanx of medial four fingers

NS: Median nerve

NR: C7, 8; T1

A: Flexes middle phalanx of fingers and assists in flexing proximal phalanx and hand

Flexor pollicis longus

O: Anterior surface of shaft of radius

I: Distal phalanx of thumb

NS: Anterior interosseous branch of median nerve

NR: C8; T1

A: Flexes distal phalanx of thumb

Flexor digitorum profundus

O: Anteromedial surface of shaft of ulna

I: Distal phalanges of medial four fingers

NS: Ulnar (medial half) and median (lateral half) nerves

NR: C8;T1

A: Flexes distal phalanx of fingers; then assists in flexion of middle and proximal phalanges and wrist

Extensor carpi radialis longus

O: Lateral supracondylar ridge of humerus

I: Posterior surface of base of second metacarpal bone

NS: Radial nerve

NR: C6, 7

A: Extends and abducts hand at wrist joint

Extensor capri radialis brevis

O: Lateral epicondyle of humerus

I: Posterior surface of base of third metacarpal bone

NS: Deep branch of radial nerve

NR: C7, 8

A: Extends and abducts hand at wrist joint

Extensor digitorum

O: Lateral epicondyle of humerus

I: Middle and distal phalanges of medial four fingers

NS: Deep branch of radial nerve

NR: C7, 8

A: Extends fingers and hand

Extensor digiti minimi

O: Lateral epicondyle of humerus

I: Extensor expansion of little finger

NS: Deep branch of radial nerve

NR: C7, 8

A: Extends metacarpal phalangeal joint of little finger

Extensor carpi ulnaris

O: Lateral epicondyle of humerus

I: Base of 5th metacarpal bone

NS: Deep branch of radial nerve

NR: C7, 8

A: Extends and adducts hand at wrist joint

Anconeus

O: Lateral epicondyle of humerus

I: Lateral surface of olecranon process of ulna

NS: Radial nerve

NR: C7, 8; T1

A: Extends elbow joint

Supinator

O: Lateral epicondyle of humerus, anular ligament of proximal radioulnar joint, and ulna

I: Neck and shaft of radius

NS: Deep branch of radial nerve

NR: C5, 6

A: Supination of forearm

Abductor policis longus

O: Posterior surface of shafts of radius and ulna

I: Base of first metacarpal bone

NS: Deep branch of radial nerve

NR: C7, 8

A: Abducts and extends thumb

Extensor policis brevis

O: Posterior surface of shaft of radius

I: Base of proximal phalanx of thumb

NS: Deep branch of radial nerve

NR: C7, 8

A: Extends metacarpophalangeal joints of thumb

Extensor pollicis longus

O: Posterior surface of shaft of ulna

I: Base of distal phalanx of thumb

NS: Deep branch of radial nerve

NR: C7, 8

A: Extends distal phalanx of thumb

Extensor indicis

O: Posterior surface of shaft of ulna

I: Extensor expansion of index finger

NS: Deep branch of radial nerve

NR: C7, 8

A: Extends metacarpophalangeal joint of index finger

Palmaris Brevis

O: Flexor retinaculum, palmar aponeurosis

I: Skin of palm

NS: Superficial branch of ulnar nerve

NR: C8; T1

A: Corrugates skin to improve grip of palm

Lumbricals (4)

O: Tendons of flexor digitorum profundus

I: Extensor expansion of medial four fingers

NS: 1st and 2nd, (i.e., lateral two) median nerve; 3rd and 4th deep branch of ulnar nerve

NR: C8; T1

A: Flex metacarpophalangeal joints and extend interphalangeal joints of fingers except thumb

Palmar (4)

O: First arises from base of 1st metacarpal; remaining three from anterior surface of shafts of 2nd, 4th, and 5th metacarpals

I: Proximal phalanges of thumb and index, ring, and little fingers and dorsal extensor expansion of each finger

NS: Deep branch of ulnar nerve

NR: C8; T1

A: Palmar interossei adduct fingers toward center of third finger

Dorsal (4)

O: Contiguous sides of shafts of metacarpal bones

I: Proximal phalanges of index, middle, and ring fingers and dorsal extensor expansion

NS: Deep branch of ulnar nerve

NR: C8; T1

A: Dorsal interossei abduct fingers from center of third finger; both palmar and dorsal flex metacarpophalangeal joints and extend interphalangeal joints

Abductor policis brevis

O: Scaphoid, trapezium, flexor retinaculum

I: Base of proximal phalanx of thumb

NS: Median nerve

NR: C8; T1

A: Abduction of thumb

Flexor policis brevis

O: Flexor retinaculum

I: Base of proximal phalanx of thumb

NS: Median nerve

NR: C8; T1

A: Flexes metacarpophalangeal joint of thumb

Opponens pollicis

O: Flexor retinaculum

I: Shaft of metacarpal bone of thumb

NS: Median nerve

NR: C8; T1

A: Pulls thumb medially and forward across palm

Adductor pollicis

O: Oblique head; 2nd and 3rd metacarpal bones; transverse head; 3rd metacarpal bone

I: Base of proximal phalanx of thumb

NS: Deep branch of ulnar nerve

NR: C8; T1

A: Adduction of thumb

Abductor digiti minimi

O: Pisiform bone

I: Base of proximal phalanx of little finger

NS: Deep branch of ulnar nerve

NR: C8; T1

A: Abducts little finger

Flexor digiti minimi

O: Flexor retinaculum

I: Base of proximal

phalanx of little

finger

NS: Deep branch of ulnar nerve

NR: C8; T1

A: Flexes little finger

Opponens digiti minimi

O: Flexor retinaculum

I: Medial border fifth metacarpal bone

NS: Deep branch of ulnar nerve

NR: C8; T1

A: Pulls 5th metacarpal forward as in cupping the palm

Interossei (8)

Actually wala siyay MOINA HAHAHHAA