A) Describe the steps involved in the conduction of information along one neuron

Question

A) Describe the steps involved in the conduction of information along one neuron. B) How do vertebrates increase the speed of their nerve transmissions?

C) Identify three (3) components of the synapse that can be modulated to either increase or decrease responsiveness (look at the targets of various drugs, different drugs affect different components of the synapse). Explain how they can be modulated to produce different effects on cells (for example, the effect that each drug has on the function of the synapse).

Explanation / Answer

A) The conduction of information along one neuron invoves the following process

1) The generation of the action potential. An action potential depolarizes the axon terminal.

2) The action potential is transsmission across the neuron and reach the nerve terminal

3) After release of action potential into the synaptic cleft

4) Again throgh the nerve terminals the information is passed to the other neuron through the synaptic cleft.

5) The synaptic cleft is the junction between the two neurons where the excitatory or inhibitory neurotransmittors are released.

B) The vibrates increase the speed of their nerve transmission the impulse transmitting through the nerve is incresed when the cells of the inner ear are open when they are distorted by sound vibrations. These increase the spped of propogation dramatically hence the vibrates increase their spped of nerve transmission.

C) The three components of the synapse that can be modulated to either increase are decrease in responsiveness are explained below

1) NEURO MODULATORS

Neuro transmittors like the Protein coupled receptors

2) Ligand gated channels

3) Acetyl choline etc

4) Synaptic vesicles the storage sites of neurotransmitters.

These are the components of synapsis that can be modulated because when the inhibitory potential reaches the synapsis inhibitory neuro transsmittors are released when the excitatory neuro transmitters reaches means excitatory neurotranssmitter molecules are released. When the drug bind to specific receptors specific action can be seen either excitatory or inhibitory if EPSP means excitatory if IPSP s means inhibitory action.

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