Biology 9700 · AS & A Level · The circulatory system

The circulatory system — practice question

Several different tissues are present in the walls of large blood vessels. Which row correctly names the main tissues found in the three layers of the wall of an artery?

  • Aouter layer (tunica externa): collagen; middle layer (tunica media): elastic; inner layer (tunica intima): endothelium
  • Bouter layer (tunica externa): collagen; middle layer (tunica media): muscle; inner layer (tunica intima): elastic
  • Couter layer (tunica externa): elastic; middle layer (tunica media): collagen; inner layer (tunica intima): endothelium
  • Douter layer (tunica externa): muscle; middle layer (tunica media): collagen; inner layer (tunica intima): elastic

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