Multiple choice Which one of the following sets of organs is derived from ectoderm? Brain, spinal cord, pituitary, thyroid Brain, spinal cord, liver, pancreas Brain, spinal cord, pituitary, pineal Heart, eye, dentine, skeleton Reveal answer Fill a bubble to check yourself C Correct answer Explanation The brain, spinal cord, pituitary gland, and pineal gland are all derived from the ectoderm during embryonic development.