| 释义 |
DictionarySeejunctionMedicalSeeSQUAMOCOLUMNAR JUNCTION: Squamocolumnar junction of the distal esophagus (seen endoscopically)squamocolumnar junction1. The point in the cervical canal at which the squamous and columnar epithelia meet. As most cervical cancers begin in this area, it is important to obtain cells from this location for the Pap test. 2. The point above the lower esophageal sphincter where the squamous epithelium of the esophagus and the columnar epithelium of the stomach meet. Synonym: transition zone. See: illustrationtight junctionA part of the junctional complex at the lateral interface between epithelial cells; also called zonula occludens. junc·tion (jŭngk'shŭn) [TA] The point, line, or surface of union of two parts, mainly bones or cartilages. ">junction (seen endoscopically)" href="javascript:eml2('davisTab', 'j05.jpg')"> SQUAMOCOLUMNAR JUNCTION: Squamocolumnar junction of the distal esophagus (seen endoscopically)squamocolumnar junction1. The point in the cervical canal at which the squamous and columnar epithelia meet. As most cervical cancers begin in this area, it is important to obtain cells from this location for the Pap test. 2. The point above the lower esophageal sphincter where the squamous epithelium of the esophagus and the columnar epithelium of the stomach meet. Synonym: transition zone. See: illustrationtight junctionA part of the junctional complex at the lateral interface between epithelial cells; also called zonula occludens. junc·tion (jŭngk'shŭn) [TA] The point, line, or surface of union of two parts, mainly bones or cartilages. |