Multiple choice

Extraembryonic tissues are derived from which one of the following?

  1. Ectoderm

  2. Endoderm

  3. Trophoectoderm

  4. Mesoderm

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Extraembryonic tissues, such as the chorion and placenta, are derived primarily from the trophectoderm (or trophoblast) of the blastocyst in mammalian embryos.