Lesson 27: Embryology Week 3 Quizellenj2023-01-13T13:49:28-05:00 Please sign up for the course before taking this quiz. 1. The heart begins as 2 tubes.1 True False 2. Which is the correct order?1 implantation, blastulation, gasturlation, neurulation blastulation, gastrulation, implantation, neurulation implantation, neurulation, blastulation, gastrulation blastulation, implantation, gastrulation, neurulation 3. The side of the ectoderm with the primitive streak will become:1 the side that will develop into legs and feet the brain and nervous system the side that will develop into the head the inside, including the digestive tract 4. Which means “stomach side”?1 ventral dorsal 5. 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. 6. Neural crest cells will turn into any of these EXCEPT:1 bones and tissues of the middle ear nerves around heart and spinal cord melanocyte skin cells nerves of face and head lining of mouth and stomach 7. If the neural tube does not close properly, this can lead to a condition called:1 cerebral palsy spina bifida carcinoma paralysis 8. The somites will eventually turn into the tissues that make the:1 face spine digestive system arm and leg bones 9. What nutrient should women take before and during pregnancy to help prevent neural tube defects?1 vitamin D folic acid (a B vitamin) vitamin C vitamin B 12 riboflavin ( a B vitamin) vitamin A 10. The ectoderm will curl around the rest of the germ disc.1 True False 11. After the disc curls up, what is the inside called? (usually colored yellow)1 the primitive groove the gut tube the neural tube 12. Blood vessels form with blood cells already inside them.1 True False 13. 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 14. The heart tubes arise from the:1 endoderm ectoderm yolk sac mesoderm 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
