O: Medial half of clavicle, Sternum, First 6 costal cartilages.

In: Crest of greater tubercle of humerus

Inn: Lateral and Medial pectoral nerve.

O: Ribs 2-5

In: Coracoid process

Inn: Medial pectoral nerve

O: Junction of first rib and its costal cartilage.

In: Inferior surface of clavicle.

Inn: Nerve to subclavius

O: First 8 ribs

In: Superior angle, medial border, and inferior angle of costal surface of the scapula.

Inn: Long Thoracic Nerve.

O: occipital bone, spine of all cervical via ligamentum nuchae, spines of all thoracic.

In: Lateral third of clavicle, acromion, SUPERIOR lip of crest of spine of scapula (SAC)

Inn: Accessory nerve (CNXI), C3, C4

O: Spinous process of lower 6 thoracic, lumbar, and sacral via aponeurosis, iliac crest, lower 3 or 4 ribs.

In: Intertubercular groove

Inn: Thoracodorsal nerve.

O: Transverse process of C1-C4

In: Medial border of scapula ABOVE spine level.

Inn: C3, C4

O: Spinous process of C7-T1

In: Medial border of scapula AT spine level.

Inn: Dorsal scapular nerve

O: Spinous process of T2-T5

In: Medial border of the scapula BELOW spine level.

Inn: Dorsal scapular nerve.

O: INFERIOR lip of crest of spine of scapula, acromion, lateral third of clavicle (SAC)

In: Deltoid tuberosity of humerus

Inn: Axillary nerve

O: Supraspinous fossa

In: Greater tubercle of humerus, superior third.

Inn: Suprascapular nerve

O: Infraspinous fossa

In: Greater tubercle of humerus, middle third.

Inn: Suprascapular nerve

O: Lateral margin of infraspinous fossa

In: Greater tubercle of humerus, inferior third

Inn: Axillary nerve

O: Inferior angle of scapula, dorsal surface.

In: CREST of lesser tubercle

Inn: Lower subscapular nerve

O: Subscapular fossa

In: Lesser tubercle of humerus, crest of lesser tubercle of humerus.

Inn: Upper and Lower subscapular nerve.

O: Short - Coracoid process

     Long - Supraglenoid tubercle

In: Tuberosity of radius, bicipital aponeurosis

Inn: musculocutaneous nerve

O: Coracoid process

In: Middle third of medial border of humerus.

Inn: Musculocutaneous

O: Anterior distal humerus

In: Ulnar tuberosity, coronoid process of the ulna

Inn: Musculocutaneous

O: Long - infraglenoid tubercle

     Lateral - posterior humerus ABOVE radial nerve

    Medial - Posterior humerus BELOW radial nerve

In: Olecranon process of ulna (same as anconeus)

Inn: Radial nerve

O: Superficial - medial supracondylar ridge of humerus, medial epicondyle. Deep - coronoid process of ulna

In: Middle lateral radius

 Inn: Median nerve

O: Medial epicondyle

In: Anterior surface of the base of the second and third metacarpals

Inn: Median nerve

O: Medial epicondyle

In: Palmar aponeurosis, flexor retinaculum

Inn: Median nerve

O: Humeral - medial epicondyle Ulnar - Olecranon process, posterior shaft of ulna

In: Pisiform, hamate via pisohamate ligament, fifth metacarpal via pisometacarpal ligament.

Inn: Ulnar nerve

O: Humeral - medial epicondyle Ulnar - coronoid process Radial - proximal anterior radius

In: Middle phalanx of fingers 2-5

Inn: Median nerve

O: Proximal 3/4 of anterior, medial and posterior ulna, coronoid process

In: Anterior surace of the base of distal phalanx of fingers 2-5

Inn: Anterior interosseous nerve (lateral half), Ulnar nerve (medial half)

O: Anterior radius

 In: Base of distal phalanx of thumb

Inn: Anterior interosseous nerve

O: Anterior surface of the distal 1/4 of ulna

In: Anterior surface of the distal 1/4 of radius.

Inn: Anterior interosseous nerve

O: UPPER lateral supracondylar ridge of humerus

In: Styloid process of radius

Inn: Radial nerve

O: LOWER lateral supracondylar ridge of humerus

In: Posterior surface of base of 2nd metacarpal

Inn: Radial nerve

O: Lateral epicondyle of humerus

In: Posterior surface of base of 3rd metacarpal

Inn: Radial nerve

O: Lateral epicondyle of humerus

In: Extensor expansions of digits 2-5

Inn: Deep brance of radial nerve

O: Lateral epicondyle of humerus

In: Extensor expansions of 5th digit

Inn: Deep brance of radial nerve

O: Lateral epicondyle of humerus, Posterior shaft of ulna

In: Medial side of base of 5th metacarpal.

Inn: Deep branch of radial nerve

O: Lateral epicondyle of humerus

In: Lateral surface of olecranon process (same as triceps)

Inn: Radial nerve

O: Superficial - lateral epicondyle Deep - supinator crest and supinator fossa of the ulna

In: Superfial - Radius between tuberosity and pronator teres insertion Deep - shaft of radius near tuberosity

Inn: Deep brance of radial nerve

O: Upper posterior surface of ulna, radius, and interosseous membrane

In: Base of 1st metacarpal

Inn: Posterior interosseous nerve

O: Distal posterior surface of radius

 In: Proximal phalanx of thumb

Inn: Posterior interosseous nerve

O: Posterior surface of middle third of ulna and interosseous membrane

In: Base of distal phalanx of thumb

 Inn: Posterior interosseous nerve

O: Distal posterior surface of ulna and interosseous membrane

In: Extensor expansions of 2nd digit

Inn: Posterior interosseous nerve

O: Flexor retinaculum, trapezium, scaphoid

In: Lateral side of base of proximal phalanx of thumb

Inn: Recurrent branch of median nerve

O: Superficial - flexor retinaculum trapezium Deep - capitate, trapezoid

In: Lateral side of base of proximal phalanx of thumb

Inn: Superficial - recurrent brance of median nerve Deep - deep branch of ulnar nerve

O: Flexor retinaculum, trapezium

In: Lateral anterior shaft of first metacarpal

Inn: Recurrent brance of median nerve

O: Oblique - capitate, trapezoid, base of 2nd metacarpal Transverse - shaft of 3rd metacarpal

In: Medial side of base of proximal phalanx of thumb

Inn: Deep brance of Ulnar nerve

O: Pisiform

In: Medial side of base of proximal phalanx 5th finger

Inn: Deep brance of ulnar nerve

O: Hook of hamate

In: Medial side of baes of proximal phalanx 5th finger

Inn: Deep branch of ulnar nerve

O: Hook of hamate

In: Anterior shaft of 5th metacarpal

Inn: Deep branch of ulnar nerve

O: Medial border of palmar aponeurosis

In: Skin

Inn: Superficial branch of ulnar nerve

O: 1st & 2nd = via single heads from the lateral sides of two tendons of flexor digitorum profundus 3rd & 4th = via double heads from the medial three

In: Lateral sides of extensor expansions of fingers

Inn: 1st & 2nd = median 3rd & 4th = deep branch of ulnar

O: Double heads from adjacent sides of two metacarpal bones

In: Extensor expansions of fingers 2, 3, and 4 on the side allowing abduction or deviation

Inn: Deep branch of ulnar

O: Single heads from metacarpals 1-5

In: 1st inserts into the medial side of the base of the proximal phalanx of the thumb (with adductor pollicis) and 2nd-4th insert into the extensor expansions on the sides that allow adduction of 2, 4, and 5

Inn: Deep branch of ulnar