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Question
Explain the difference between of the following pair of terms :
cerebrum and cerebellum
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Solution
| Cerebrum | Cerebellum |
| The cerebrum is a part of the forebrain. | The cerebellum is a part of the hindbrain. |
| It is the site of our faculties such as learning, reasoning, intelligence, personality and memory. | It helps in maintaining posture and balance of the body. It also enables us to make precise and accurate movements. |
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The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.
 |
- Name the phenomenon shown in the figure and define the same.
- Identify the parts labelled as 1 and 2. Write one functional difference between these two.
- Name the bony protective covering and the membranous protective covering of the spinal cord.
- Label the guidelines 3 and 4.
- How is the labelled part 3 different from part 4 with respect to its composition (part of neuron)?
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- Name the fluid filled inside the central canal of spinal cord.
- Name the term used for a small gap between two neurons.
- Give one example of a neurotransmitter.
- Draw a neat diagram of a nerve cell and label the parts: Perikaryon, Node of Ranvier, Myelin sheath and Axon terminals.
