1 Neurons and Synapses. 2 Neurons y Cells that Transmit messages from one part of the body to another yMany different types and sizes.

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Presentation transcript:

1 Neurons and Synapses

2 Neurons y Cells that Transmit messages from one part of the body to another yMany different types and sizes

3 Neurotransmitters zChemicals released by brain that send messages to neurons. zNeurotransmitter sent from neuron to neuron

4 Dendrites zInformation collectors/neurotra nsmitter collector zReceive inputs from neighboring neurons zIf enough inputs are received, the cell’s AXON may generate an output

5 Soma - the cell body yContains DNA yMaintains the cell yNo role in neural signaling zContains the cell’s Nucleus

6 Axon zThe cell’s output structure zOne axon per cell, yWire like structure ySends messages through the neuron

7 Myelin sheath zWhite fatty casing on axon which acts as an electrical insulator zincreases the speed of neural signals down the axon Myelin Sheath

8 Terminal Buttons (Axon terminals) zroots at the ends of axons zStore and release neurotransmitters zMessages are sent to neighboring neurons

9 Synapse zGap between each Neuron zNeurotransmitter must be released so it can reach the next neuron.