Question
Distinguish between
i. Grey matter and White matter
ii. A stimulus and An Impulse
i. Grey matter and White matter
ii. A stimulus and An Impulse
✓
Answer
i. Difference between Grey matter and White matter:
ii. Difference between A stimulus and An impulse:
| Grey Matter | White matter |
| It is composed of cell bodies (cytons) of a nerve cell. It is inside the brain but outside the spinal cord | It is composed of axons from the nerves cells. It is inside the brain but outside the spinal cord. |
| A stimulus | An impulse |
| Any change in the environment of an organism that evokes response or impulse. | It is a self-propagating wave electrochemical in nature; negatively travelling along the axon of a nerve cell. |
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