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Nervous System

Topic 2: Nervous System

Study this topic

1

Your Body's Lightning-Fast Communication Network

Introduction2

Key Facts

Key Facts3

Neurone Structure: Your Body's Wiring

Deep Dive4

Synapses: How Neurones Communicate

Deep Dive5

Brain Structure

Deep Dive6

Eye Structure

Deep Dive7

Required Practical: Reaction Time (RPA7)

Practical8

How It Works: Electrical Impulses Through the Nervous System

How It Works9

Accommodation: How the Eye Focuses

How It Works10

Voluntary vs Reflex Actions

Comparison11

Key Definitions

Definitions12

Common Misconceptions

Misconceptions13

Memory Aids

Memory Aid14

Higher Brain Scanning and Vision Defects

Higher Tier15

Exam Focus

Exam Focus16

Knowledge Organiser

Summary17

Exam Tips: Nervous System

Exam Tips

Sample Flashcards

Name the three types of neurone.
Sensory (receptor → CNS), relay (within CNS), motor (CNS → effector). Remember: SRM — Students Revise Methodically.
Name four types of sensory receptor.
Photoreceptors (light, in eye), thermoreceptors (temperature, in skin), pressure receptors (touch, in skin), chemoreceptors (chemicals, in tongue and nose).

Sample Questions

What are the two organs that make up the central nervous system (CNS)?

  • A. Heart and lungs
  • B. Brain and spinal cord
  • C. Sensory neurones and motor neurones
  • D. Eyes and ears
1 markfoundation

Explain how a signal is transmitted across a synapse from one neurone to the next.

3 marksstandard

15

exam-style questions

20

revision flashcards

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