Arm/Forearm/Wrist Muscles + Innervation or Action
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| Pec major - Action | adducts/rotates, flexes/extends humerus, pulls scapula forward and down
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| Pectoralis minor - Action | stabilizes/protracts scapula
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| Subclavius - Action | brings clavicle medially
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| Serratus anterior - Action | protracts/stabilizes scapula
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| Biceps brachii - Action | raises/flexes forearm
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| Brachialis - Action | flexes arm
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| Coracobrachialis - Action | flexes/abducts arm
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| Triceps brachii - Action | extends forearm
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| Anconeus - Action | stabilizes elbow, helps extend forearm
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| Pronator teres - Action | pronate forearm
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| Flexor carpi radialis - Action | flex/abduct wrist
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| Palmaris longus - Action | flexes wrist, abducts thumb
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| Flexor carpi ulnaris - Action | flex/adduct wrist
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| Flexor digitorum superficialis - Action | flexes middle joint of fingers
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| Flexor digitorum profundus - Action | flexes last finger joint and for live long/prosper
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| Flexor pollicis longus - Action | flexes thumb joint
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| Pronator quadratus - Action | pronates forearm
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| Brachioradialis - Action | flexes elbow
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| Extensor carpi radialis longus - Action | extends wrist
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| Extensor carpi radialis brevis - Action | extends wrist
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| Extensor carpi ulnaris - Action | extends/adducts wrist
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| Extensor digitorum - Action | extends fingers and wrist
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| Extensor digiti minimi - Action | extends pinky
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| Supinator - Action | supinates forearm
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| Abductor pollicis longus - Action | abducts thumb/wrist
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| Extensor pollicis brevis - Action | extends thumb
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| Extensor pollicis longus - Action | extends thumb
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| Extensor indicis - Action | extends/adducts index finger
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| Pec major - Innervation | Both Lateral AND medial pectoral
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| Pectoralis minor- Innervation | Pierced through by Medial pectoral only
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| Subclavius - Innervation | Nerve to subclavius
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| Serratus anterior - Innervation | Long thoracic
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| Biceps brachii - Innervation | Musculocutaneous
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| Brachialis - Innervation | Musculocutaneous
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| Coracobrachialis - Innervation | Pierced through by Musculocutaneous
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| Triceps brachii- Innervation | Radial
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| Anconeus - Innervation | Radial
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| Pronator teres- Innervation | Median
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| Flexor carpi radialis - Innervation | Median
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| Palmaris longus- Innervation | Median
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| Flexor carpi ulnaris - Innervation | ULNAR
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| Flexor digitorum superficialis- Innervation | Median
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| Flexor digitorum profundus - Innervation | BOTH median (lateral 1/2) and ulnar (medial 1/2)
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| Flexor pollicis longus- Innervation | Median
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| Pronator quadratus - Innervation | Median
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| Brachioradialis - Innervation | Radial
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| Extensor carpi radialis longus- Innervation | Radial
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| Extensor carpi radialis brevis - Innervation | Radial
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| Extensor carpi ulnaris - Innervation | Deep radial
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| Extensor digitorum - Innervation | radial
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| Extensor digiti minimi - Innervation | Deep radial
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| Supinator - Innervation | Deep radial
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| Abductor pollicis longus - Innervation | Deep radial
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| Extensor pollicis brevis - Innervation | Deep radial
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| Extensor pollicis longus - Innervation | Deep radial
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| Extensor indicis - Innervation | Deep radial
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| 5 contents of the carpal tunnel | 1. Flexor capi radialis 2. Flexor pollicis longus 3. Flexor digitorum superficialis 4. Profundus 5. Median nerve (sensory to thumb through median ring finger and thenar muscles)
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| Abductor pollicis brevis - Action | abducts thumb, extends IP joint
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| Opponens pollicis- Action | Opposes thumb/other digits
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| Flexor pollicis brevis- Action | Flexes IP joint, helps opposition
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| Adductor pollicis- Action | Adducts and flexes MP joint
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| Palmaris brevis- Action | Tenses skin of the palm
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| Abductor digiti minimi- Action | Abducts/flexes pinky
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| Opponens digiti minimi- Action | Opposition
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| Flexor digiti minimi brevis- Action | Flexes pinky
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| Lumbricals- Action | Flexes MP joints, extends IP joints
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| Palmar interossei - Action | Adduct digits, flex MP joint, extend IP joints
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| Dorsal interossei - Action | Abduct digits, flex MP joint, extend IP joints
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| Abductor pollicis brevis - Innervation | Recurrent branch of median
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| Opponens pollicis - Innervation | Median
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| Flexor pollicis brevis - Innervation | Both Recurrent branch of median AND Ulnar
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| Adductor pollicis - Innervation | Ulnar
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| Palmaris brevis - Innervation | Superficial branch of the ulnar
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| Abductor digiti minimi - Innervation | Ulnar
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| Opponens digiti minimi - Innervation | Ulnar
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| Flexor digiti minimi brevis - Innervation | Ulnar
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| Lumbricals - Innervation | BOTH median (1 & 2) and ulnar (3 &4)
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| Palmar interossei - Innervation | Ulnar
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| Dorsal interossei - Innervation | Ulnar
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