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Nervous System

ICSE · Class 10 · Biology

Complete topic list for Nervous System in ICSE Class 10 Biology. Key concepts, sub-topics, and what to focus on for board exams.

45 questions20 flashcards5 concepts

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A labeled diagram of the human vertebral column, showing the different regions (cervical, thoracic, lumbar, sacral, coccygeal) and the number of vertebrae in each, including fused bones.
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4 Topics · ICSE Class 10 Biology

Topics in Nervous System

1

Structure and Function of Neurons

  • Neurons are the basic structural and functional units of the nervous system
  • Over one trillion neurons are present in the human body
  • Four main parts of a neuron: Cell body/Soma/Cyton, Dendrites, Axon, and Axon terminals
2

Types of Neurons and Nerves

  • Three types based on function: Sensory, Motor, and Association neurons
  • Sensory neurons carry impulses from sense organs to CNS
  • Motor neurons carry impulses from CNS to effector organs (muscles/glands)
3

Nerve Impulse Transmission

  • Nerve impulse is an electrical phenomenon traveling along the axon
  • Three stages: Polarization, Depolarization, and Repolarization
  • Polarization: Resting state with positive charge outside, negative inside
4

Central Nervous System - Brain

  • Brain weighs about 1.3 kg and is enclosed in cranium
  • Protected by three meninges: Dura mater, Arachnoid mater, Pia mater
  • Cerebrospinal fluid fills space between meninges for protection and nutrition

Key Concepts

A neuron has four main partsBased on functionNerve impulse transmission involvesA synapse is the junction betweenCNS includes brain and spinal cord

Frequently Asked Questions

What are the important topics in Nervous System for ICSE Class 10 Biology?
Nervous System covers several key topics that are frequently asked in ICSE Class 10 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 10 Biology?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision 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 16 chapters — ICSE Class 10 Biology Syllabus

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