知识贝壳
知识贝壳
所属栏目：英汉双解生物学
Aneurotransmitterfound at the majority of synapses,which oc-cur where one nerve cell meets another.Nerves that produce acetylcholine are calledcholinergic nerves ; they form the parasympa-thetic nervous system and also supply thevoluntary muscles. See neu ......（本文共 338 字 ） [阅读本文] >>