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Nervous System

ICSE · Class 8 · Biology

Complete topic list for Nervous System in ICSE Class 8 Biology. Key concepts, sub-topics, and what to focus on for board exams.

93 questions32 flashcards5 concepts

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4 Topics · ICSE Class 8 Biology

Topics in Nervous System

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1. Coordination and Nervous System

  • Coordination means the interlinking of body activities according to the needs of the body.
  • There are two types of coordination: nervous coordination and chemical coordination.
  • Nervous coordination is brought about by the nervous system.
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2. Neuron: Structural and Functional Unit

  • A neuron is the structural and functional unit of the nervous system.
  • A neuron has two main parts: cyton and axon.
  • Cyton is the main cell body and contains the nucleus.
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3. Types of Nerves

  • A nerve is formed of a bundle of axons enclosed in a tubular medullary sheath.
  • The medullary sheath acts as insulation and prevents mixing of impulses in adjacent fibres.
  • There are three kinds of nerves: sensory nerve, motor nerve, and mixed nerve.
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4. Human Nervous System

  • The human nervous system has two main divisions: central nervous system and peripheral nervous system.
  • The central nervous system consists of the brain and spinal cord.
  • The brain is protected within the skull.

Key Concepts

Central concept: Coordination and control in the human body

CoordinationNeuronSynapseNerveHuman nervous systemCentral nervous systemPeripheral nervous systemBrain

Frequently Asked Questions

What are the important topics in Nervous System for ICSE Class 8 Biology?
Nervous System covers several key topics that are frequently asked in ICSE Class 8 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Nervous System — ICSE Class 8 Biology?
Understand the core concepts first, then work through the 93 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 9 chapters — ICSE Class 8 Biology Syllabus

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