| extensor muscle of fingers | <anatomy, muscle> Origin, lateral epicondyle of humerus; insertion, by four tendons into the base of the proximal and middle and base of the second and third phalanges of 4 fingers; action, extends fingers and hand; nerve supply, radial (posterior interosseous). Synonym: musculus extensor digitorum, extensor muscle of fingers, musculus extensor digitorum communis. (05 Mar 2000) |
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| zinc fingers | Domains in DNA- and RNA-binding proteins that contain amino acids which are folded into a single structural unit around a zinc atom that links two cysteines and two histidines. Each finger is postulated to recognise a specific sequence of about five nucleotide pairs. (12 Dec 1998) |