Chapter 22

3. These formations will later become eyes.
6. The transient section of the dorsal neural tube that gives rise to peripheral sensory neurons and glia.
7. This section of the developing embryo gives rise to the thalamus and hypothalamus.
9. This section of the developing embryo gives rise to the pons and cerebellum.
11. This section of the developing embryo gives rise to the midbrain.
15. In this stage of embryonic development, the cells migrate to create three distinct layers.
16. These cells form bicycle-like spokes to aid in neural migration.
17. Cells These cells may become any other type of cell, depending on input from their surroundings.
18. Which embryonic germ layer gives rise to the lining of the organs?
20. These genes influence the segmentation of Drosophila.

1. What determines whether cells in the dorsal ectoderm give rise to epidermal or neural cells?
2. This section of the developing embryo gives rise to the medulla.
4. The division of an organism into repeating units, specifically on the anterior/posterior axis.
5. This section of the developing embryo gives rise to the cerebrum.
8. The sharp bend in the neural tube that balloons out into the prosencephalon.
10. In this stage of embryonic development, a folding process creates a tube that is crucial in future development of the brain.
12. Which embryonic germ layer gives rise to the neural tube?
13. The transient section of the coral neural tube that gives rise to interneurons in the spine and hindbrain.
14. Which embryonic germ layer gives rise to the organs?
19. These genes influence the segmentation of human embryos.