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Learning objective

Explain the structure of arteries, veins, and capillaries, focusing on the thickness of their walls, the size of their lumen, and the existence of valves in veins.

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  • Practise with linked questions.
Cambridge IGCSE Combined ScienceTransport in animalsCore content

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Quick explanation

Explain the structure of arteries, veins, and capillaries, focusing on the thickness of their walls, the size of their lumen, and the existence of valves in veins

  • This point belongs to Blood vessels, especially Blood vessels outcomes.
  • You need to be able to explain the structure of arteries, veins, and capillaries, focusing on the thickness of their walls, the size of their lumen, and the existence of valves in veins.
  • The key ideas to know are Describe, Identify, and Outline.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeIdentifyOutline

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Paper 3 structured question: Blood vessels

Paper 3Theory (Core)2 marks

Description

Blood Vessel Structures

Arteries, veins, and capillaries have different structures that suit their functions in the circulatory system.

  1. a

    Describe the structural differences between arteries and veins.

    Aim for approximately 2 distinct marking points.

    [2]
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Cambridge IGCSECombined Science resources