11/20 - AP Neurons

Based on yesterday’s lesson about the nervous and endocrine systems and neurotransmitters and hormones; tell me 2-3 things that you think you know about neurons already – remember, guessing is okay!

Main part of the cell; where you find the nucleus

• Soma

• Axon

• Dendrite

• Myelin Sheath

• Terminal branches/buttons

Part that receives messages from other neurons; branchy

• Soma

• Axon

• Dendrite

• Myelin Sheath

• Terminal branches/buttons

At the end of the neuron; releases neurotransmitters

• Soma

• Axon

• Dendrites

• Myelin sheath

• Terminal branches/buttons

Extension of the neuron that ends in branches or buttons; signal is sped up in this part

• Soma

• Axon

• Dendrites

• Myelin sheath

• Terminal branches/buttons

Segmented fat/protein that encases (wraps around) the axon fibers; insulates to speed up transmission of the signal

• Soma

• Axon

• Dendrites

• Myelin sheath

• Terminal branches/buttons

Outside of a neuron, communication is __________________

Inside of a neuron, it is ______________________

Without listing all the steps, summarize how a neural network works.

Action potential is the mixing of _______, or polarization.