Across
- 2. the supply of nutrients and oxygen for our growing embryo (3/4)
- 3. Becomes most of the right ventricle (2 words)(5/6)
- 4. The __ cavity surrounds the heart (5/6)
- 6. Structure at the very head of the sperm (3/4)
- 9. layer that forms some of the extra embryonic tissues (3/4)
- 11. This structure will become the body cavities (5/6)
- 13. Protein that stimulates limb bud development (2 words)(5/6)
- 14. The notochord forms from __ cells (3/4)
- 17. This cell invades the uterine wall (3/4)
- 18. hole between the right and left atrium (2 words) (5/6)
- 19. Inhibits the formation of blood vessels; drug (5/6)
Down
- 1. By the morula stage, the cells become (3/4)
- 5. The pinched off region of the yolk sac (5/6)
- 7. Composed of three germ layers (two words) (3/4)
- 8. Cells that build the walls of our blood vessels (5/6)
- 10. This process releases the secondary oocyte (3/4)
- 12. The organs that produce gametes in the body are called (3/4)
- 15. The nervous system rises from this germ layer (3/4)
- 16. differentiation of the epiblast layer (3/4)
- 17. Give rise to the vertebral column, ribs, and skeletal muscle (3/4)