The lymphatic system consists of all lymphatic vessels and lymphoid organs. For example, the lymph nodes, spleen, thymus as well as the lymphatic tissue found in the small intestine (Peyer's patches) and throat (adenoid tonsils, palatine and tubal tonsils), to name a few, all represent lymphatic organs.胎儿时期我们共用母亲的保护系统，出生后的宝宝第一次建立自己的保护系统哪里出现呢？
声音简介
用户评论
表情0/300
音频列表
- 2022-01
- 2022-01
查看更多
dordogne二狗子
💗