APP A chemical neurotransmitter that is expelled into the synaptic cleft,or space between two nerve cells. This neurotransmitter permits the transmission of an electrical nerve impulse or action potential from one nerve cell to another by diffusing across the......（本文共 335 字） [閱讀本文] >>
說明： 本文檔由創(chuàng)作者上傳發(fā)布，版權(quán)歸屬創(chuàng)作者。若內(nèi)容存在侵權(quán)，請點擊