level: Deep Extensors of Forearm/Wrist/Digits
Questions and Answers List
level questions: Deep Extensors of Forearm/Wrist/Digits
| Question | Answer |
|---|---|
| Supinator | Origin: LEH Insertion: Proximal Radius Action: Supinates forearm Innervation: Radial Nerve |
| Abductor Pollicis Longus | Origin: Posterior Radius and ulna (Posterior Interosseus Membrane) Insertion: Base of Metacarpal 1 Action: Abducts and extends the thumb Innervation: Radial Nerve |
| Extensor Pollicis Brevis | Origin: Radius and Interosseous Membrane Insertion: Proximal phalanx of thumb Action: Extends the thumb and abducts the hand Innervation: Radial Nerve |
| Extensor Pollicis Longus | Origin: Ulna and Interosseus membrane Insertion: distal phalanx of thumb Action: Abducts hand and extends thumb Innervation: Radial Nerve |
| Extensor Indicis | Origin: Ulna and interosseus Membrane Insertion:Dorsal surface of index finger Action: Extends index finger Innervation: Radial Nerve |