bursa of Fabricius

例句：

1. 1. The bursa of Fabricius is a small sac located in the neck that houses lymphatic tissue.
   布氏腺是位于颈部的一个小型囊袋，里面装着淋巴组织。
2. 2. This condition is often associated with allergies and can be treated with medication.
   这种状况通常与过敏有关，可以通过药物进行治疗。
3. 3. The bursa of Fabricius plays a crucial role in immune function by filtering out foreignsubstances from the body.
   布氏腺在免疫系统中发挥着关键作用，通过过滤掉体内的外来物质来维持免疫功能。