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