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Why aren't neurotransmitters considered to be hormones?

Mr Rayon
in Homework Help

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Function - neurotransmitters only affect the cell directly across the synapse, only serve to depolarize the membrane, and are quickly taken up again to be recycled. Hormones spread throughout the body, have a greater diversity of effects (none electrical), and aren't recycled as easily.

Function - neurotransmitters only affect the cell directly across the synapse, only serve to depolarize the membrane, and are quickly taken up again to be recycled. Hormones spread throughout the body, have a greater diversity of effects (none electrical), and aren't recycled as easily.

A slight amendment... some neurotransmitters can also act as hormones.

 

example: http://www.ncbi.nlm.nih.gov/pubmed/14764638

 

this further serves to illustrate Mokele's point. The exact same molecule can be considered a hormone at one point and a neurotransmitter at another, based totally on function.

Edited by ecoli

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