Choose the incorrect sentence regarding arteries and veins.

  • A
    Tunica externa is an external layer of fibrous connective tissue with collagen fibres.
  • B
    The tunica media is comparatively thin in the veins.
  • C
    The tunica intima is the middle layer and possesses elastic fibres.
  • D
    Basically,each artery and vein consists of three layers.

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