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Learning objective

Recognize and label the components of the respiratory system in diagrams and images, including the lungs, diaphragm, ribs, intercostal muscles, larynx, trachea, bronchi, bronchioles, alveoli, and the associated capillaries.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Combined ScienceGas exchange in humansCore content

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Quick explanation

Recognize and label the components of the respiratory system in diagrams and images, including the lungs, diaphragm, ribs, intercostal muscles, larynx, trachea, bronchi, bronchioles, alveoli, and the associated capillaries

  • This point belongs to Gas exchange in humans, especially Gas exchange in humans outcomes.
  • You need to be able to recognize and label the components of the respiratory system in diagrams and images, including the lungs, diaphragm, ribs, intercostal muscles, larynx, trachea, bronchi, bronchioles, alveoli, and the associated capillaries.
  • The key ideas to know are Identify and Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

IdentifyDescribe

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Paper 3 structured question: Gas exchange in humans

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Description

Components of the Respiratory System

The respiratory system includes the lungs, diaphragm, ribs, intercostal muscles, larynx, trachea, bronchi, bronchioles, alveoli, and capillaries.

  1. a

    Identify List three components of the respiratory system.

    Aim for approximately 1 distinct marking point.

    [1]
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