Axon轴突 thin. less branch the longest axon( siatic nerve) can reach 1m no Nissl body have microtubules neurofilaments microfilaments, mitochondria. SER and vesicles axon hillock #t I: the initiating part of axon (no Nissl body) Axolemma轴膜: membrane on the axon surface AXoplasm轴浆: plasma within the axon Axon terminal function: To initiate and conduct the impulse axon hillocksthin, less branch， the longest axon（siatic nerve） can reach ~1m no Nissl body have microtubules, neurofilaments, microfilaments, mitochondria, SER and vesicles • axon hillock 轴丘: the initiating part of axon(no Nissl body) • Axolemma 轴膜: membrane on the axon surface • Axoplasm 轴浆：plasma within the axon • Axon terminal ---function: To initiate and conduct the impulse axon hillock Axon 轴突