Foundations of neural communication Flashcards
Neural transmission
How neurons communicate with each other. This happens to electrical and chemical signals
Threshold
The level of stimulation required to trigger an action potential in a neuron. Such as an alarm going off when opening a door
Action potential
Electrical neuron that travels down the axon of a neuron. Like turning on and off a light switch
All-or-nothing principle
Once a neuron reaches its threshold expectation, it will fire an action potential at full strength. Like how If you don’t push a button hard enough it won’t work
Depolarization
Where the inside of a neuron becomes less negative compared to the outside. Such as if a dam breaks and water flows out
refractory period
A brief period following an action potential during which a neuron is un able to generate another action potential. When you wait for something to return to its normal state
Resting potential
The stable negitive electrical charge that exists across the cell membrane of a neuron when it is not actually transmitting signals
Reputake
Neurotransmitters that have been released into the synapse and are revisited by the pre sympathetic neuron from which they originally released
Multiple sclerosis (MS)
Chronic automatic disease that affects the central nervous system including the brain and spinal cord. When the immune system mistakenly attacks the protective myelin sheath
Multiple sclerosis (MS)
Chronic automatic disease that affects the central nervous system including the brain and spinal cord. When the immune system mistakenly attacks the protective myelin sheath
Myasthenia Gravis
Chronic autoimmune disorder that affects the neuromuscular junction, where nerve impulses are transmitted to muscles. It destroys muscles when the immune system produces antibodies that block or destroy the receptor for acetylcholine
