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