Consider that you are passing by a garbage disposal area and you immediately
cover your nose. Arrange the events below in a logical order by marking
them from 1 to 5 to trace the events that happen in the nervous system from
detection of foul smell (stimulus generation) to covering your nose
(response).
(i) At the end of the axon, electrical impulse releases chemicals
(ii) Stimulus received on the dendritic cells of a neuron sets off chemical
reaction that creates an electrical impulse
(iii) Electrical impulse transmitted through cell body and axon
(iv) The chemicals cross the synapse and reach the next neuron. Similarly,
the electrical impulse crosses several neurons
(v) Finally, the impulse is delivered from neuron to the gland that helps in
recognition of the foul smell and muscle cells that help in covering the nose
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Steps from 1-5 through which the events occurs in the nervous system are;
Step 1- Stimulus received on the dendritic cells of a neuron sets off chemical
reaction that creates an electrical impulse
Step 2- Electrical impulse transmitted through cell body and axon
Step 3- At the end of the axon, electrical impulse releases chemicals
Step 4- The chemicals cross the synapse and reach the next neuron. Similarly, the electrical impulse crosses several neurons
Step 5- Finally, the impulse is delivered from neuron to the gland that helps in recognition of the foul smell and muscle cells that help in covering the nose
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