BIOLOGY
JAMB 2006 - Question 6
Biology 2006 JAMB Past Questions - Question 6: One basic similarity between nervous and endocrine system is that they both
Choose the most appropriate option for the gap .
A:
B:
C:
D:
Correct Answer
C
Explanation
C - The transmission of impulses along theneurones is by electrochemical means. This implies that it is by electrical andchemical transmissions. The transmission of an impulse along the nerve fibre iselectrical. At the synapse, a chemical caiied acetylcholine is secreted byneighbouring dendrites to hasten the transmission of the impulse so that itgets into the intermediate neurone. Thereafter another chemical (enzyme) calledchoiinesterase is released to neutralize acetylcholine. The endocrine, systemsecretes only chemicals (hormones).The action of these hormones is slow while that of an impulse is veryfast.
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