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