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UE - Muscles
Forearm - Extensors
| Question | Answer |
|---|---|
| Anconeus - Origin | Lateral Epicondyle of Humerus |
| Anconeus - Insertion | Lateral Surface of Olecranon Process |
| Anconeus - Innervation | Radial N. (C5-T1) |
| Anconeus - Action | Forearm Extension |
| Anconeus - Blood Supply | Deep Brachial A. & Recurrent Interosseous A. |
| Extensor Carpi Radialis Longus - Origin | Lateral Supracondylar Ridge of the Humerus |
| Extensor Carpi Radialis Longus - Insertion | Base of the 2nd Metacarpal |
| Extensor Carpi Radialis Longus - Innervation | Radial N. (C5-T1) |
| Extensor Carpi Radialis Longus - Action | Wrist Extension & Radial Deviation |
| Extensor Carpi Radialis Longus - Blood Supply | Radial A. |
| Extensor Carpi Radialis Brevis - Origin | Lateral Supracondylar Ridge of the Humerus |
| Extensor Carpi Radialis Brevis - Insertion | Base of 2nd Metacarpal |
| Extensor Carpi Radialis Brevis - Innervation | Radial N. (C5-T1) |
| Extensor Carpi Radialis Brevis - Action | Wrist Extension & Radial Deviation |
| Extensor Carpi Radialis Brevis - Blood Supply | Radial A. |
| Extensor Digitorum - Origin | Lateral Epicondyle of the Humerus |
| Extensor Digitorum - Insertion | Middle and Distal Phalanges Digits 2-5 |
| Extensor Digitorum - Innervation | Posterior Interosseous Branch of the Radial N. (C7-C8) |
| Extensor Digitorum - Action | Wrist extension & Extension of 2nd-5th Digits |
| Extensor Digitorum - Blood Supply | Posterior Interosseous A. |
| Extensor Digiti Minimi - Origin | Lateral Epicondyle of Humerus |
| Extensor Digiti Minimi - Insertion | Dorsal Digital Expansion of 5th Digit |
| Extensor Digiti Minimi - Innervation | Posterior Interosseous Branch of Radial N. (C7-C8) |
| Extensor Digiti Minimi - Action | Wrist Extension & Extends 5th Digit |
| Extensor Digiti Minimi - Blood Supply | Posterior Interosseous A. |
| Extensor Carpi Ulnaris - Origin | Later Epicondyle of Humerus |
| Extensor Carpi Ulnaris - Insertion | Base of the 5th Metacarpal |
| Extensor Carpi Ulnaris - Innervation | Posterior Interosseous Branch of Radial N. (C7-C8) |
| Extensor Carpi Ulnaris - Action | Wrist Extension & Ulnar Deviation |
| Extensor Carpi Ulnaris - Blood Supply | Ulnar A. |
| Extensor Pollicis Longus - Origin | Middle 1/3rd Posterior Ulna & Interosseous Membrane |
| Extensor Pollicis Longus - Insertion | Distal Phalanx of the 1st Digit |
| Extensor Pollicis Longus - Innervation | Posterior Interosseous Branch of the Radial N. (C7-C8) |
| Extensor Pollicis Longus - Action | Weak extension of the Wrist & Extension of hte 1st Digit |
| Extensor Pollicis Longus - Blood Supply | Posterior Interosseous A. |