Across
- 3. - the outermost layer of the skin
- 4. - digests food and rids your body of toxic substances
- 5. - the basic physical and functional unit of heredity
- 7. - is a structural frame that supports a human body
- 9. - the 33 individual bones that interlock with each other to form the spinal column
- 10. - it is the starting point of the digestive system
- 13. - a pair of spongy, air-filled organs located on either side of the chest
- 16. - is known as the large bowel or large intestine
- 17. cord - A column of nerve tissue that runs from the base of the skull down the center of the back
- 19. - the largest organ of the body
- 21. - a soft fatty substance in the cavities of bones
- 22. - the largest part of blood; stores blood
- 24. - an organ in the human body which secretes particular chemical substances for use in the body
Down
- 1. - a thin tube in your lower right abdomen; it sits where the large intestine meets the small intestine
- 2. - a cable-like structure in the body that relays information from one part of the body to another
- 4. - a fibrous connective tissue which attaches bone to bone
- 6. - a hollow, muscular tube that connects the throat to the stomach
- 8. - blood vessels that carry blood low in oxygen from the body back to the heart
- 11. - a fibrous connective tissue which attaches muscle to bone
- 12. - a band or bundle of fibrous tissue in a human body that has the ability to contract, producing movement in or maintaining the position of parts of the body
- 14. - a bony structure that supports the face and forms a protective cavity for the brain
- 15. - lumps of tissue at the back of the throat
- 18. - the blood vessels that deliver oxygen-rich blood from the heart
- 20. - the blood circulating through the body of a person
- 23. - a special filter system for your body