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