| 释义 |
DictionarySeepatchEncyclopediaSeePeyer's patchesPeyer patch
Peyer patch (pī′ĕr) [Johann Conrad Peyer, Swiss anatomist, 1653–1712] A group of diffuse lymphoid nodules in the mucosa of the small bowel. Part of the mucosa-associated lymphoid tissue (MALT), Peyer's patches detect and respond to foreign antigens in the gastrointestinal tract. Antibodies secreted by B cells in Peyer's patches provide a significant defense against ingested pathogens. |