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level: Deep Extensors of Forearm/Wrist/Digits

Questions and Answers List

level questions: Deep Extensors of Forearm/Wrist/Digits

QuestionAnswer
SupinatorOrigin: LEH Insertion: Proximal Radius Action: Supinates forearm Innervation: Radial Nerve
Abductor Pollicis LongusOrigin: Posterior Radius and ulna (Posterior Interosseus Membrane) Insertion: Base of Metacarpal 1 Action: Abducts and extends the thumb Innervation: Radial Nerve
Extensor Pollicis BrevisOrigin: Radius and Interosseous Membrane Insertion: Proximal phalanx of thumb Action: Extends the thumb and abducts the hand Innervation: Radial Nerve
Extensor Pollicis LongusOrigin: Ulna and Interosseus membrane Insertion: distal phalanx of thumb Action: Abducts hand and extends thumb Innervation: Radial Nerve
Extensor IndicisOrigin: Ulna and interosseus Membrane Insertion:Dorsal surface of index finger Action: Extends index finger Innervation: Radial Nerve