| 释义 |
DictionarySeemuscleischiococcygeus
mus·cle (mŭs'ĕl), [TA] A primary tissue, consisting predominantly of highly specialized contractile cells, which may be classified as skeletal muscle, cardiac muscle, or smooth muscle; microscopically, the latter is lacking in transverse striations characteristic of the other two types; one of the contractile organs of the body by which movements of the various organs and parts are effected; typical muscle is a mass of musculus fibers (venter or belly), attached at each extremity, by means of a tendon, to a bone or other structure; the more proximal or more fixed attachment is called the origin (q.v.), the more distal or more movable attachment is the insertion (q.v.); the narrowing part of the belly that is attached to the tendon of origin is called the caput or head. For gross anatomic description, see musculus Synonym(s): musculus [TA] [L. musculus]
coc·cyg·e·us mus·cle [TA] striated pelvic muscle associated with the deep (pelvic) aspect of the sacrospinous ligament, forming part of the pelvic diaphragm; origin, spine of ischium and sacrospinous ligament; insertion, sides of lower part of sacrum and upper part of coccyx; action, with the sacrospinous ligament assists in support of pelvic floor, theoretically increasingly so when intra-abdominal pressures increase; nerve supply, third and fourth sacral. Synonym(s): musculus coccygeus [TA], coccygeal muscle, ischiococcygeus, musculus ischiococcygeuscoc·cyg·e·us mus·cle (kok-sij-ē'ŭs mŭs'ĕl) [TA] Origin, spine of ischium and sacrospinous ligament; insertion, sides of lower part of sacrum and upper part of coccyx; action, assists in support of pelvic floor, especially when intraabdominal pressures increase; nerve supply, third and fourth sacral.
Synonym(s): musculus coccygeus [TA] , coccygeal muscle, ischiococcygeus, musculus ischiococcygeus. ischiococcygeus (ĭs″kē-ō-kŏk-sĭj′ē-ŭs) [″ + kokkyx, coccyx] 1. The coccygeus muscle. 2. The posterior portion of the levator ani. |