See Also: musculus extensor digitorum(medicine)
musculus extensor digitorum longus(medicine)
musculus extensor digitorum brevis(medicine)
musculus extensor digitorum communis(medicine)
musculus extensor longus digitorum(medicine)
tendon sheath of extensor digitorum and extensor indicis muscles(medicine)
extensor digitorum(medicine)
extensor digitorum longus(medicine)
extensor digitorum brevis(medicine)
tendon sheath of extensor digitorum longus muscle of foot(medicine)

musculus extensor digitorum communis (medicine) and nor- (medicine)


musculus extensor digitorum communis (medicine)


musculus extensor digitorum communis -->
extensor digitorum
<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.


nor- (medicine)


nor-


1. Chemical prefix denoting 1) elimination of one methylene group from a chain, the highest permissible locant being used; 2) contraction of a (steroid) ring by one CH2 unit, the locant being the capital letter identifying the ring. Elimination of two methylene groups is denoted by the prefix dinor-; three groups, by trinor-, etc.

2. Chemical prefix denoting "normal," i.e., unbranched chain of carbon atoms in aliphatic compounds, as opposed to branched with the same number of carbon atoms; e.g., norleucine, leucine.