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Chapter 18 of 19
Revision Notes

Neural Control and Coordination

CBSE · Class 11 · Biology

Quick revision notes for Neural Control and Coordination — CBSE Class 11 Biology. Key concepts, formulas, and definitions for last-minute revision.

113 questions68 flashcards5 concepts

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Key Topics to Revise

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1. Human Neural System

  • The human neural system is divided into the central neural system and the peripheral neural system.
  • The central neural system includes the brain and the spinal cord and is the site of information processing and control.
  • The peripheral neural system comprises all the nerves of the body associated with the CNS.
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2. Neuron: Structure and Types

  • A neuron is the structural and functional unit of the neural system.
  • A neuron is a microscopic excitable cell composed of the cell body, dendrites, and axon.
  • The cell body contains cytoplasm, organelles, and Nissl's granules.
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3. Resting Potential and Nerve Impulse

  • Neurons are excitable because their membranes are in a polarised state.
  • At rest, the axonal membrane is more permeable to K+ and nearly impermeable to Na+.
  • The axoplasm contains high K+ and negatively charged proteins and low Na+.
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4. Synapse and Transmission of Impulse

  • A synapse is a junction formed by the membranes of a pre-synaptic neuron and a post-synaptic neuron.
  • The synaptic cleft may or may not be present between the two membranes.
  • There are two types of synapses: electrical synapse and chemical synapse.

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Full Notes

Key Concepts

The neural system is madeThe central neural system includesThe peripheral neural system includes allA neuron is the microscopic structuralMultipolar neurons have one axon

Frequently Asked Questions

What are the important topics in Neural Control and Coordination for CBSE Class 11 Biology?
Neural Control and Coordination covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Neural Control and Coordination — CBSE Class 11 Biology?
Understand the core concepts first, then work through the 113 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

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