Anatomy of the UE
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| show | Abductor pollicis Brevis, opponens pollicis, flexor pollicis brevis
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| Abductor Pollicis Brevis | show 🗑
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| show | Insertion: 1st metacarpal
Function: opposition
Innervated by Median N
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| show | Insertion: base of proximal phalanx, radial side of thumb
Function: MCP flexion
Innervated by Median N
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| show | Abductor digiti minimi, Flexor digiti minimi, adductor, lumbricles (ulnar side), palmar interossei, dorsal interossei
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| Abductor digiti minimi | show 🗑
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| Opponens digiti minimi | show 🗑
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| show | Insert: proximal phalenx of 5th digit
Function: Flexion of MCP joint and opposition of the 5th digit
Innervated by Ulnar N
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| Adductor | show 🗑
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| Lumbricals (ulnar side) | show 🗑
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| show | Insert: ulnar surface of 2nd MCP
radial surface of 4th/5th MCP
Function: Adduction and assist with MCP flexion/extension of IP joints 2-5
Innervated by Ulnar N
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| show | Flexor digitorum superficialis (FDS), Flexor digitorum profundis (FDP), Flexor pollicis longus (FPL)
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| Flexor digitorum superficialis (FDS) | show 🗑
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| Flexor digitorum profundis (FDP) Median N | show 🗑
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| Flexor pollicis longus (FPL) | show 🗑
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| show | Flexor digitorum profundus
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| Flexor digitorum profundus (ulnar N) | show 🗑
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| show | Extensor digitorum communis (EDC), Extensor Digiti minimi (EDM), Extensor indicis proprius (EIP), Extensor Pollicis longus (EPL), Extensor Pollicis Brevis (EPB), Abductor pollicis longus (APL)
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| show | Origin: lateral epicondyle
Inset: Medial band to middle phalanx and lateral band to distal phalenx
Function: Extension of MCP joints and contribution to extension of IP joints
Innervated by the Radial Nerve
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| Extensor Digiti minimi (EDM) | show 🗑
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| Extensor indicis proprius (EIP) | show 🗑
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| show | Origin: ulna, middle 1/3
Insert: distal phalenx of the thumb
Function: Extension of the IP joint of the thumb
Innervated by the Radial Nerve
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| show | Origin: radius middle 1/3
Insert: proximal phalenx of thumb
Function: extension of MCP and CMC joints of the thumb
Innervated by the Radial Nerve
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| Abductor pollicis longus (APL) | show 🗑
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| show | Flexor carpi radialis (FCR) and Palmaris Longus (PL)
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| show | Origin: Medial Epicondyle
Insert: 2nd and 3rd metacarpal bone
Function: flexion of wrist and radial deviation
Innervated by the Median N
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| show | Origin: medial epicondyle
Insert: palmar aponeurosis
Function: Flexion of the wrist
Innervated by the Median N
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| Wrist Flexors innervated by the ulnar nerve (1) | show 🗑
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| Flexor Carpi Ulnaris (FCU) | show 🗑
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| show | Extensor Carpi radialis brevis (ECRB), Extensor Carpi radialis longus (ECRL), Extensor carpi ulnaris (ECU)
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| Extensor Carpi radialis brevis (ECRB) | show 🗑
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| Extensor Carpi radialis longus (ECRL) | show 🗑
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| Extensor carpi ulnaris (ECU) | show 🗑
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| show | Pronator teres, Pronator quadratus
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| Pronator teres | show 🗑
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| Pronator quadratus | show 🗑
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| Dorsal forearm muscles innervated by the Radial N (1) | show 🗑
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| show | Origin: lateral epicondyle and ulna
Insert: radius
Function: Supination
Innervated by the Radial N
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| Elbow flexion muscles innervated by the musculocuteneous N (2) | show 🗑
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| show | Origin: coracoid process and supraglenoid tubercle (long and short head)
Insert: radial tuberocity
Function: Elbow flexion with forearm supinated
Innervated by the musculocutaneous N
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| Brachialis | show 🗑
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| Elbow flexion muscles innervated by the radial N (1) | show 🗑
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| show | Origin: Supracondylar ridge
Insert: distal radius
Function: elbow flexion with forearm neutral
Innervated by Radial N
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| show | Triceps, Anconeus
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| Triceps | show 🗑
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| Anconeus | show 🗑
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| show | Subscapularis, suprascaularis, infraspinatos, Teres minor
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| show | Origin: Anterior surface of scapula
Insert: Lesser tuberocity
Function: IR
Innervated by subscapular N
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| show | Origin: supraspinatus fossa
Insert: Greater tuberocity
Function: Abduction and shoulder flexion
Innervated by suprascapular N
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| show | Origin: Infraspinatus fossa
Insert: Greater tuberocity
Function: ER
Innervated by suprascapular N
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| show | Origin: Axillary boarder of scapula
Insert: Greater tuberocity
Function: ER
Innervated by axillary N
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| Shoulder Flexion Muscles (3) | show 🗑
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| Anterior Deltoid | show 🗑
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| show | Origin: Coracoid process
Insert: Medial aspect of deltoid
Function: shoulder flexion
Innervated by musculocutaneous
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| show | Middle deltoid, supraspinatous
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| show | Origin: Acromion
Insert: deltoid tuberocity
Function: shoulder abduction
Innervated by axillary N
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| show | Pectoralis Major
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| show | Origin: Medical clavicle, sternum, and ribs 1-7
Insert: greater tuberocity
Function: horizontal adduction
Innervated by lateral pectoral N
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| Horizontal Abduction muscles (1) | show 🗑
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| show | Origin: spine of scapula
Insert deltoid tuberocity
Function: horizontal abduction
Innervated by axillary N
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| Shoulder extension Muscles (3) | show 🗑
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| show | Origin: T6-12, L1-5, sacral vertebrae, ribs 9-12, iliac crest, and inferior angle of scapula
Insert: intertubercular groove of humerous
Function: Shoulder extension
Innervated by thoracodorsal nerve
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| Teres Major | show 🗑
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| Upward rotation of scapula (2) | show 🗑
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| Trapezius | show 🗑
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| Serratus Anterior | show 🗑
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| Dowanward rotation of the scapula (4) | show 🗑
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| Levator scapulae | show 🗑
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| Rhmoboids | show 🗑
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| Scapular adduction muscles 2 | show 🗑
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| show | serratus anterior
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| Scapular elevation 2 | show 🗑
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| show | trapezisus
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