Check my Hand Functions due to the muscle loss in my last post Muscle-loss
Forearm Muscles:
Forearm has two compartments Posterior & Anterior
Posterior Compartment
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| Hand Muscles Posterior |
Superficial muscles :
- Brachioradialis flexes at the elbow.
- Extensor Carpi Radialis Longus and Brevis extends and abducts the wrist.
- Extensor Digitorum extends medial four fingers at the MCP and IP joints.
- Extensor Digiti Minimi extends the little finger and contributes to extension at the wrist.
- Extensor Carpi Ulnaris extension and adduction of wrist.
- Anconeus moves the ulna during pronation and extends at the elbow joint.
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| Hand Muscles Posterior 2 |
Deep Muscles:
- Supinator supinates the forearm.
- Abductor Pollicis Longus abducts the thumb.
- Extensor Pollicis Brevis extends at the metacarpophalangeal and carpometacarpal joints of the thumb.
- Extensor Pollicis Longus extends all joints of the thumb: carpometacarpal, metacarpophalangeal and interphalangeal.
- Extensor Indicis extends the index finger.
