Chapter 22

3. Which embryonic germ layer gives rise to the lining of the organs?
8. The division of an organism into repeating units, specifically on the anterior/posterior axis.
9. These genes influence the segmentation of Drosophila.
13. The sharp bend in the neural tube that balloons out into the prosencephalon.
15. This section of the developing embryo gives rise to the medulla.
16. The transient section of the coral neural tube that gives rise to interneurons in the spine and hindbrain.
17. In this stage of embryonic development, the cells migrate to create three distinct layers.
18. What determines whether cells in the dorsal ectoderm give rise to epidermal or neural cells?
19. Which embryonic germ layer gives rise to the neural tube?

1. This section of the developing embryo gives rise to the midbrain.
2. This section of the developing embryo gives rise to the pons and cerebellum.
4. Cells These cells may become any other type of cell, depending on input from their surroundings.
5. Which embryonic germ layer gives rise to the organs?
6. This section of the developing embryo gives rise to the cerebrum.
7. This section of the developing embryo gives rise to the thalamus and hypothalamus.
9. These genes influence the segmentation of human embryos.
10. These formations will later become eyes.
11. In this stage of embryonic development, a folding process creates a tube that is crucial in future development of the brain.
12. These cells form bicycle-like spokes to aid in neural migration.
14. The transient section of the dorsal neural tube that gives rise to peripheral sensory neurons and glia.