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Body Fluids and Circulation — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBody Fluids and Circulation1 Mark
MCQ
A vein possesses a large lumen because:
  • A
    Tunica media and tunica externa form a single coat.
  • B
    Tunica interna and tunica media form a single coat.
  • C
    Tunica interna, tunica media and tunica externa are thin.
  • D
    Tunica media is a thin coat.
✓

Answer

  1. Tunica media is a thin coat.

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