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