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Chapter 6 of 8
Chapter Summary

Nervous System

ICSE · Class 7 · Biology

Summary of Nervous System for ICSE Class 7 Biology. Key concepts, important points, and chapter overview.

70 questions36 flashcards5 concepts

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Overview

The nervous system controls and coordinates body activities. Coordination is the interaction of body activities according to internal or external needs. Nervous coordination is carried out by the brain, spinal cord, nerves, and sense organs. A neuron is the basic structural and functional unit of th

Key Concepts

Coordination is the interaction of body

Coordination is the interaction of body activities according to the needs of the body, either inside or outside. It helps different body parts work to

A neuron

A neuron, also called a nerve cell, is the structural and functional unit of the nervous system. It has a cyton, dendrites, and an axon.

The cyton is the main cell

The cyton is the main cell body of a neuron. It contains a nucleus and gives out dendrites.

Dendrites are fine cytoplasmic extensions

Dendrites are fine cytoplasmic extensions of the cell body. They receive impulses from organs and pass them through the cell body into the axon.

The axon is the long process

The axon is the long process of a neuron that transmits the message. It ends in terminal branches.

Learning Objectives

  • Understand the meaning of coordination and nervous coordination.
  • Identify the main parts of a neuron and their functions.
  • Differentiate between sensory, motor, and association neurons.
  • Classify sensory, motor, and mixed nerves.
  • Describe the central nervous system and peripheral nervous system.

Frequently Asked Questions

What are the important topics in Nervous System for ICSE Class 7 Biology?
Nervous System covers several key topics that are frequently asked in ICSE Class 7 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 7 Biology?
Understand the core concepts first, then work through the 70 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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