Lesson 27: Embryology Week 3 Quizellenj2023-01-13T13:49:28-05:00 Please sign up for the course before taking this quiz. 1. What nutrient should women take before and during pregnancy to help prevent neural tube defects?1 vitamin B 12 vitamin A folic acid (a B vitamin) vitamin C vitamin D riboflavin ( a B vitamin) 2. Neural crest cells will turn into any of these EXCEPT:1 melanocyte skin cells nerves around heart and spinal cord lining of mouth and stomach bones and tissues of the middle ear nerves of face and head 3. If the neural tube does not close properly, this can lead to a condition called:1 paralysis cerebral palsy spina bifida carcinoma 4. Sonic Hedgehog protein wasn’t really named after Sonic the Hedgehog.1 True False 5. Which is the correct order?1 blastulation, gastrulation, implantation, neurulation blastulation, implantation, gastrulation, neurulation implantation, blastulation, gasturlation, neurulation implantation, neurulation, blastulation, gastrulation 6. After the disc curls up, what is the inside called? (usually colored yellow)1 the gut tube the neural tube the primitive groove 7. The ectoderm will curl around the rest of the germ disc.1 True False 8. The heart begins as 2 tubes.1 True False 9. Which is NOT true of the notochord?1 It will turn into the spinal cord. It secretes a chemical called Sonic Hedgehog (SHH). It will control the organization of body tissues. 10. The side of the ectoderm with the primitive streak will become:1 the side that will develop into the head the inside, including the digestive tract the brain and nervous system the side that will develop into legs and feet 11. Which means “stomach side”?1 ventral dorsal 12. What goes on in the yolk sac?1 tiny blood vessels form nutrients are produced for the embryo the lining of the intestines begins to form nothing important 13. Blood vessels form with blood cells already inside them.1 True False 14. The somites will eventually turn into the tissues that make the:1 digestive system spine face arm and leg bones 15. The heart tubes arise from the:1 mesoderm ectoderm yolk sac endoderm Lesson 26: Embryology Week 2 Lesson 28: Embryology Week 4 Back to: Lesson 27: Embryology Week 3