Formative Practice 12.2 (Form 4 Biology Textbook Exercise and Answer)

Question 1:
Explain the role of the brain in body coordination.

The brain receives various types of information from the receptor. It analyses, integrates and links the information together to form a meaningful overview.
After the information is processed, appropriate response(s) will be determined and effectors are directed to execute the response(s).

Question 2:
Compare the functions of the cerebellum and the medulla oblongata.

The cerebellum functions to control and regulate body movement as well as maintain body balance.
The medulla oblongata controls involuntary responses such as peristaltic action.

Question 3:
State one difference between the functions of the somatic nervous system and the autonomic nervous system.

The somatic nervous system controls all voluntary actions while the autonomic nervous system controls involuntary actions.

Question 4:
Explain why we cannot resist sneezing.

We cannot refrain from sneezing because it is an involuntary action.

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