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CAIE A-Level Biology 8.1.5 Plan Diagrams of Arteries and Veins

Practise drawing artery and vein plans with proportional tunica layers and lumen dimensions, no cellular detail and valves only where supported by the section shown.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • show tissue-layer boundaries and relative thicknesses without individual-cell detail
  • include elastic fibres and smooth muscle in tunica media and collagen in outer tissue
  • distinguish artery and vein plans through wall-to-lumen ratio and valve evidence

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