His team found that exposing mice to the bacteria, and hence activating their immune system, activated clusters of neurons in their brainstem called the dorsal Raphenuclei.
The cytoarchitecture of the raphenuclei of the brain stem in the tree shrew was studied with Nissl's method.
用尼氏染色法，对树鼩脑干中缝核的细胞构筑进行了研究。
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It is also suggested that this control of pharyngeal movement from the 5 HT neurons in the raphenuclei is mediated by two subtypes of 5 HT receptor, 5ht3 and 5ht1a.