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