Lent C M
Science. 1973 Feb 16;179(4074):693-6. doi: 10.1126/science.179.4074.693.
Mucus release from the skin of leeches is under the control of the pair of large Retzius cells in each segmental ganglion. The rate of mucus release increases with the impulse activity of Retzius cells and with the concentration of their putative neurotransmitter, 5-hydroxytryptamine, to which the skin is exposed.
水蛭皮肤黏液的分泌受每个节段神经节中一对大型Retzius细胞的控制。黏液分泌速率随Retzius细胞的冲动活动以及皮肤所接触的其假定神经递质5-羟色胺浓度的增加而提高。