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