<P> The vast majority of axonal proteins are synthesized in the neuronal cell body and transported along axons . Axonal transport occurs throughout the life of a neuron and is essential to its growth and survival . Microtubules ( made of tubulin ) run along the length of the axon and provide the main cytoskeletal `` tracks '' for transportation . Kinesin and dynein are motor proteins that move cargoes in the anterograde ( forwards from the soma to the axon tip ) and retrograde ( backwards to the soma ( cell body ) ) directions , respectively . Motor proteins bind and transport several different cargoes including mitochondria , cytoskeletal polymers , autophagosomes , and synaptic vesicles containing neurotransmitters . </P>
<P> The vast majority of axonal proteins are synthesized in the neuronal cell body and transported along axons . Axonal transport occurs throughout the life of a neuron and is essential to its growth and survival . Microtubules ( made of tubulin ) run along the length of the axon and provide the main cytoskeletal `` tracks '' for transportation . Kinesin and dynein are motor proteins that move cargoes in the anterograde ( forwards from the soma to the axon tip ) and retrograde ( backwards to the soma ( cell body ) ) directions , respectively . Motor proteins bind and transport several different cargoes including mitochondria , cytoskeletal polymers , autophagosomes , and synaptic vesicles containing neurotransmitters . </P>
neurons move material away from the soma by
neurons move material away from the soma by
Kinesin dynein
Kinesin dynein