| 释义 |
DictionarySeetriangleanal triangle
a·nal tri·an·gle [TA] the posterior portion of the perineal region through which the anal canal opens; bounded by a line through both ischial tuberosities, the sacrotuberous ligaments, and the coccyx. Synonym(s): regio analis [TA], anal regionanal triangleThe dorsal triangular region of the perineum from the point at the tip of the coccyx to a line between the two ischial tuberosities. The anal triangle contains the anus. See also: triangle |