What could happen if a neurotransmitter level was too low or too high? Give an example.

Define the term neurotransmitters?

What types of cellular or organ functions would you anticipate neurotransmitters to influence?

Parkinson's disease causes tremors and slow movement due to the brain's inability to produce enough dopamine. Thus, to treat Parkinson's, doctors would MOST likely prescribe a dopamine: efferent. agonist. antagonist.

Many drugs work by interfering with the inactivation of neurotransmitters once they gave been released. What are the two basic mechanisms whereby a drug may interfere with this process? In under 5 sentences.

You apply a new drug to a different batch of neurons and record membrane potential changes in the presynaptic and postsynaptic neurons. You record an action potential in the presynaptic neuron and a change from -70mV to -90mV in the postsynaptic neuron. Your drug most likely allowed which ion into the postsynaptic neuron? Chloride GABA Glutamate Potassium

Drugs called selective serotonin reuptake inhibitors (SSRIs) affect the reuptake of neurotransmitter by presynaptic cells. SSRIs are used for the treatment of depression.  Serotonin normally causes an excitatory postsynaptic potential. Explain why neurotransmitter reuptake is important.  And describe what effect the SSRI would have on the response of these postsynaptic cells and why.

True or False: Neurotransmitters have different shapes.

Multiple sclerosis (MS) is a condition in which neurons in the CNS become demyelinated. Why do you think a NCV (nerve conduction velocity) test is not useful in diagnosing MS?

Describe neurotransmitters. Be able to give an example.