Across
- 1. skull
- 5. an organ that is part of the digestive system
- 6. neuron that transmits electrical impulses
- 8. curved bony that stiffen the walls of the body
- 10. an organ that receives light and visual images
- 12. membrane separates the interior of the cell from the outside environment
- 13. the thin layer of tissue forming the natural outer covering of the body
- 15. the bones that form the head
- 16. cord A column of nerve tissue that runs from the base of the skull down the back
- 18. female glands in which eggs form
- 22. the pair of organs that supply's the body with oxygen
- 23. the study of the structure of an animal or the human body
Down
- 2. the process in which a single parent cell divides to make two new daughter cells
- 3. the structure in the cell that contains the chromosomes
- 4. the fibers that send your body messages and signals
- 7. system is the part of the body that transmits nerve impulses between parts of the body
- 9. muscle on the front part of the arm
- 11. the clear,yellowish part of the blood that carries out the blood cells
- 14. an organ that makes one or more substances
- 17. a large organ located in the upper abdomen
- 19. blood vessels in humans
- 20. a pair of organs in the abdomen
- 21. the fluid that circulates the body