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A-Level Biology OCR A

Tunica Layers Fibres State Names Anatomical Blood Vessels

Front State the names of anatomical layers in blood vessels & what they are composed of.
Back Layers in arteries:
  • Tunica intima - endothelium (thin squamous cells)
  • Tunica media - smooth muscle and elastic fibres
  • Tunica externa - connective tissue with collagen fibres

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