Q1. [2] § 6.1 ANIMALS – NERVOUS SYSTEM § 6.1.2 Human Brain § 6.1.4 How does the Nervous Tissue cause Action?
Write the name and function of parts (i) and (ii) in the diagram of a neuron given below.
Previously asked in CBSE board exam
2023 31/5/1 Q22
Generated by claude-sonnet-4-6 · 2026-06-15 06:49 · grounding rag
Model Answer
(i) Dendrite
Function: It receives information/nerve impulses from the environment or other neurons and transmits them toward the cell body.
(ii) Axon terminal (nerve ending)
Function: At the end of the axon, the electrical impulse triggers release of chemicals that cross the synapse and pass the impulse to the next neuron or effector (muscle/gland).
Source: Chapter 6, Section 6.1 – Animals: Nervous System
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Explanation
- The examiner expects the correct name and a clear one-line function for each part — that's 1 mark per part.
- Key terms to use: receives impulse / chemical reaction / electrical impulse / synapse / axon terminal.
- Avoid confusing dendrite (receiving end) with axon (conducting end). The dendrite picks up signals; the axon terminal releases chemicals across the synapse to pass the signal onward.
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