Muscles of the Forearm (Division, Origin, Insertion, Function)

🌐 Website: https://taimtalksmed.com/ 🫀 Help keep this content free:    / @taimtalksmed   🔬 Get 10% off anatomy lab models (affiliate link): https://anatomywarehouse.com?aff=34 📲 Other Links: Instagram:   / taimtalksmed   Discord:   / discord   Content 0:00 Introduction 0:23 Division of the Forearm Muscles 0:40 Anterior (Flexor) Group 1:13 Pronator Quadratus 1:41 Flexor Digitorum Profundus 2:11 Flexor Pollicis Longus 2:36 Flexor Digitorum Superficialis 3:14 1st Layer 4:48 Lateral Group 5:28 Brachioradialis 5:55 Extensor Carpi Radialis Longus 6:17 Extensor Carpi Radialis Brevis 6:42 Posterior Group 7:05 Abductor Pollicis Longus 7:25 Extensor Pollicis Brevis 7:45 Extensor Pollicis Longus 8:05 Extensor Indicis 8:35 Extensor Digitorum 8:57 Extensor Digiti Minimi 9:20 Extensor Carpi Ulnaris Muscles of the forearm Anterior (Flexor) group Lateral (Radial) group Posterior (Extensor) group Anterior (Flexor) group 1st Layer ○ Palmaris Longus ○ Flexor Carpi Radialis ○ Pronator Teres ○ Flexor Carpi Ulnaris 2nd Layer ○ Flexor Digitorum Superficialis 3rd Layer ○ Flexor Digitorum Profundus ○ Flexor Pollicis Longus 4th Layer ○ Pronator Quadratus Pronator Quadratus musculus pronator quadratus O: Anterior surface of Ulna I: Anterior surface of Radius F: Pronation of forearm Flexor Digitorum Profundus Musculus flexor digitorum profundus O: Anterior surface of Ulna I: Base of the distal phalanges (2-5 finger) basis phalangis distalis (II-V) F: Flexion of 2-5th fingers at metacarpophalangeal and interphalangeal joints Accessory flexion of hand Flexor Pollicis Longus musculus flexor pollicis longus O: Anterior surface of Radius I: Base of the distal phalanges of the thumb basis phalangis distalis pollicis F: Flexion of thumb at metacarpophalangeal and interphalangeal joints Accessory flexion of hand Flexor Digitorum Superficialis musculus flexor digitorum superficialis O: Medial epicondyle of humerus Ulna Anterior surface of radius I: Base of the middle phalanges of 2-5th fingers basis phalangis mediale II-V F: Flexion of 2-5 fingers at metacarpophalangeal and proximal interphalangeal joints Accessory flexion of hand Pronator Teres musculus pronator teres I: Anterolateral surface of Radius Flexor Carpi Radialis musculus flexor carpi radialis I: Base of 2nd and 3rd metacarpal Palmaris Longus musculus palmaris longus I: Palmar Aponeurosis aponeurosis palmaris Flexor Carpi Ulnaris musculus flexor carpi ulnaris I: Pisiform Hamatum and base of 5th metacarpal Lateral (Radial) group Superficial Layer ○ Brachioradialis ○ Extensor Carpi Radialis Longus ○ Extensor Carpi Radialis Brevis Deep Layer Supinator Supinator musculus supinator O: Lateral Epicondyle Radial Collateral Ligament Ulna I: Lateral Surface of Radius F: Supination of the forearm Brachioradialis musculus brachioradialis O: Lateral margin of humerus I: Radius above Styloid Process F: Supination/Pronation Flexion of forearm Stabilises elbow joint Extensor Carpi Radialis Longus musculus extensor carpi radialis longus O: Lateral margin + Lateral Epicondyle of Humerus I: Base of 2nd metacarpal basis ossis metacarpalis II F: Abduction of hand Extension of hand Extensor Carpi Radialis Brevis musculus extensor carpi radialis brevis O: Lateral Epicondyle of Humerus I: Base of 3nd metacarpal basis ossis metacarpalis III F: Abduction of hand Extension of hand Posterior (Extensor) group Superficial Layer ○ Extensor Digitorum ○ Extensor Digiti Minimi ○ Extensor Carpi Ulnaris Deep Layer ○ Abductor Pollicis Longus ○ Extensor Pollicis Brevis ○ Extensor Pollicis Longus ○ Extensor Indicis Abductor Pollicis Longus musculus abductor pollicis longus O: Posterior surface of Ulna/Radius Interosseous membrane I: Base of 1st metacarpal F: Abduction of thumb Extensor Pollicis Brevis O: Posterior surface of Radius Interosseous membrane I: Base of proximal phalanx of thumb F: Extension and abduction of thumb Extensor Pollicis Longus O: Posterior surface of Ulna Interosseous membrane I: Base of distal phalanx of thumb F: Extension of thumb Extensor Indicis O: Posterior surface of Ulna Interosseous membrane I: Base of middle/distal phalanx of index finger F: Extension of Index finger Extensor Digitorum O: Lateral Epicondyle of Humerus I: Base of middle and distal phalanges of 2-5th fingers F:Abduction of Fingers Extension of hand Extensor Digiti Minimi musuclus extensor digiti minimi O: Lateral Epicondyle of Humerus I: Base of middle and distal phalanges of 5th fingers F:Extension of 5th finger Extensor Carpi Ulnaris musculus extensor carpi ulnaris O: Lateral Epicondyle of Humerus Posterior surface of Ulna I: Base of 5th metacarpal bone (medial side) basis ossis metacarpalis V F:Extension of hand Adduction of hand