noun
raphe nuclei
Anatomical term for clusters of serotonin-producing neurons along the brainstem midline.
縫線核は脳幹の正中線に沿って存在する神経核群である。
The raphe nuclei are a group of nuclei located along the midline of the brainstem.
From 縫線 (raphe) + 核 (nucleus). The term is a direct translation of the English anatomical term 'raphe nuclei'.