| Unit VI: Coordination |
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Specific Objectives
Students should be able to: |
Explanatory notes
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Suggested Practical Activities
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1. Describe the structure and functions of the nervous system;
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Units of nervous system. Functions of nervous system, neurons, function; features necessary (receptors, control, effects).
*An understanding that nerves carry messages using chemical and electrical energy; identification of the effects of the malfunctioning of the system.
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Simple reflex action; chemical and electrical transmission. |
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2. Describe the functions of the endocrine system
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Endocrine-hormones as messengers, thyroid, pancreas, sex organs, adrenal glands and pituitary glands.
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Use a flow chart to illustration the concept of the feedback mechanism; illustrate using temperature control and osmoregulation
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3. Explain how life processes are regulated by feedback control
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Ectothermic and endothermic animal; advantages of endothermic; feedback control-set range of values, detection of deviation and response, diagram.
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4. Describe the function of the parts of the mammalian eye
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Eye- accommodation and control of amount light entering eye; long-and short-sight and correction.
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Examine a model eye and a camera. |
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5. Compare the action of the eye and the simple box-camera
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Use model of box camera.
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6. Discuss the conditions which may adversely affect sight
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Explanation of how defects may be corrected by appropriate lenses; effects of bright light, ultra violet light and physical injury.
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| Go to Section B: The Home/Worklace |
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