Nodes of Ranvier
Receives information from other neurons or from sense organs
Increases the speed at which nerve impulses travel along an axon
Releases neurotransmitters that can cross over to neighboring neurons
Controls all cellular activity
Progressive Bulbar Palsy
Primary Lateral Sclerosis
The pre-synaptic neuron receptor sites
The post-synaptic neuron receptor sites
Neurotransmitters are degraded by being broken down by enzymes or reused by active re-uptake.
Neurotransmitters eventually dissolve on their own.
Neurotransmitters dissipate into the brain matter and become useless.
Neurotransmitters bind together so they are too big to fit into receptor sites and are rendered inactive.
There is too little Dopamine in the brains of Schizophrenic people.
The receptors are faulty for Dopamine in the brains of Schizophrenic people.
Schizophrenic patients cannot produce enough Dopamine.
There is too much Dopamine in the brains of Schizophrenic people. Drugs that block Dopamine receptors will decrease the action of Dopamine.
It means that it will decrease the level of the neurotransmitter available in the synaptic cleft and therefore decrease its action.
It means that it will increase the level of the neurotransmitter available in the synaptic cleft and therefore increase its action.
It means that the re-uptake of the neurotransmitter will be more efficient.
It means that the re-uptake process will help facilitate more neurotransmitter storage.