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