| sulcus carpi | The concavity on the anterior surface of the arch formed by the carpal bones. Synonym: sulcus carpi, carpal canal. (05 Mar 2000) |
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| ossa carpi | Eight bones arranged in two rows that articulate proximally with the radius and indirectly with the ulna, and distally with the five metacarpal bones; in domestic mammals, the bones of the proximal row are called radial, intermediate, ulnar, and accessory, while those of the distal row are termed first, second, third, and fourth carpal bones. Synonym: carpus, ossa carpi. (05 Mar 2000) |
| tendon sheath of extensor carpi radialis muscles | The synovial sheath lining the compartment of the extensor retinaculum containing the tendons of the extensor carpi radialis longus and brevis muscles. Synonym: vagina tendinum musculorum extensorum carpi radialium. (05 Mar 2000) |
| tendon sheath of extensor carpi ulnaris muscle | The synovial sheath surrounding the tendon of the extensor carpi ulnaris in its course deep to the extensor retinaculum. Synonym: vagina tendinis musculi extensoris carpi ulnaris, peritenon. (05 Mar 2000) |
| tendon sheath of flexor carpi radialis muscle | <anatomy> The synovial sheath enclosing the tendon of the flexor carpi radialis as it crosses the wrist. Synonym: vagina tendinis musculi flexoris carpi radialis. (05 Mar 2000) |
| eminentia carpi radialis | A rather large flat eminence on the radial side of the palmar aspect of the wrist, due to the tuberosity of scaphoid and the ridge on the trapezium. Synonym: eminentia carpi radialis. (05 Mar 2000) |
| eminentia carpi ulnaris | ulnar eminence of wrist |
| extensor carpi radialis brevis | <anatomy, muscle> Origin, lateral epicondyle of humerus; insertion, base of third metacarpal bone; action, extends and abducts wrist radialward; nerve supply, radial. Synonym: musculus extensor carpi radialis brevis, short radial extensor muscle of wrist. (05 Mar 2000) |
| extensor carpi radialis longus | <anatomy, muscle> Origin, lateral supracondylar ridge of humerus; insertion, back of base of second metacarpal bone; action, extends and deviates wrist radialward; nerve supply, radial. Synonym: musculus extensor carpi radialis longus, long radial extensor muscle of wrist. (05 Mar 2000) |
| extensor carpi ulnaris | <anatomy, muscle> Origin, lateral epicondyle of humerus (humeral head) and oblique line and posterior border of ulna (ulnar head); insertion, base of fifth metacarpal bone; action, extends and abducts wrist ulnarward; nerve supply, radial (posterior interosseous). Synonym: musculus extensor carpi ulnaris, ulnar extensor muscle of wrist. (05 Mar 2000) |
| facies articularis carpi radii | The biconcave distal surface of the radius for articulation with the scaphoid bone laterally and the lunate medially. Synonym: facies articularis carpi radii. (05 Mar 2000) |
| flexor carpi radialis | <anatomy, muscle> Origin, common flexor origin of the medial condyle of humerus; insertion, anterior surface of the base of the second and most often sending a slip to that of the third metacarpal bone; action, flexes and abducts wrist radialward; nerve supply, median; its tendon travels in its own canal roofed by a layer of the transverse carpal ligament. Synonym: musculus flexor carpi radialis, radial flexor muscle of wrist. (05 Mar 2000) |
| flexor carpi ulnaris | <anatomy, muscle> Origin, humeral head from medial condyle of humerus, ulnar head from olecranon and upper three-fifths of posterior border of ulna; insertion, pisiform bone, but is continued to the fifth metacarpal bone via the pisometacarpal ligament; action, flexes and abducts wrist ulnarward; nerve supply, ulnar. Synonym: musculus flexor carpi ulnaris, ulnar flexor muscle of wrist. (05 Mar 2000) |
| ligamentum carpi dorsale | A strong fibrous band formed as a thickening of the antebrachial deep fascia, stretching obliquely across the back of the wrist, attaching deeply to ridges on the dorsal aspect of the radius, triquetral and pisiform bones, binding down the extensor tendons of the fingers and thumb. Synonym: retinaculum extensorum, dorsal carpal ligament, ligamentum carpi dorsale. (05 Mar 2000) |
| ligamentum carpi radiatum | The ligament that extends from the capitate bone to the scaphoid, lunate, and triquetrum on the palmar side of the wrist. Synonym: ligamentum carpi radiatum. (05 Mar 2000) |