Neuron poster thingy

Neuron poster thingy

Published on 11 November 2020
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Transcript
00:01
The Three Neuron Arc
00:08
What just happened???
00:12
As the finger touched the tip of the model Eiffel Tower, the sharp point of the top poked through the skin. The pain from the touch sent their hand flying back, away from the point.
00:20
This is where your three neuron arc comes into play
00:24
The three neuron arc (or reflex arc) consists of three components
00:27
First, the Sensory Neuron (section circled)
00:31
Second, the Interneuron (section circled)
00:36
Lastly, the motor neuron (section circled)
00:40
The process starts with the stimulus and receptor. As you are surely to remember, our stimulus was the sharp point of the model Eiffel Tower. Our receptor was your fingertip.
00:45
The sensory neuron, which feels the pain of the injury, begins to send a signal to the interneuron, located in the spinal cord
00:53
The interneuron transfers the signal to the motor neuron. The motor neuron sends electrical impulses to your muscle. The muscle in your arm contracts and pulls you away from the needle
00:59
But how does a neuron work??
01:03
Shown here are all the parts of a neuron
01:07
Neurons communicate with other neurons though chemical and electrical signals
01:11
The electrical signal (also known as action potential), runs from the cell body area to the axon terminals, through a thin fiber called axon.
01:16
When the electrical impulse arrives at the end of the axon, the sodium gates open and sodium floods into the axon bulb.
01:21
The vesicles release the neurotransmitters (aka: the electric signal) into the synaptic gap. The next neuron then takes these signals and does the process all over again
01:28
Congrats!!! You made it to the end! I know it wasn't the best presentation and I may have missed or gotten some things wrong, but please forgive me. I finished this at 11:19 at night. I kinda gave up near the end.