Multiple choice

Which of the following is not paired in rabbits?

  1. Azygous vein

  2. Hemizygous vein

  3. Caudal vein

  4. Both (a) and (b)

  5. All of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

In rabbits, the azygous vein (unpaired midline vein), hemizygous vein (half/unpaired), and caudal vein are all single/unpaired structures - they exist as single vessels rather than paired left/right structures. 'All of these' is correct because all three veins are unpaired in rabbit anatomy.

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