Across
- 2. system responsible for transporting blood, nutrients, gases, and wastes throughout the body
- 3. a large, dome-shaped muscle located below the lungs
- 7. the outermost layer of the skin
- 9. the upper chambers of the heart, which receive blood coming into the heart
- 10. a muscular organ that pumps blood throughout the body
- 15. the system that is the body's outermost layer of defense; includes the skin, hair, nails, and associated glands
- 18. aka the voicebox
- 19. this part of the blood helps with blood clotting
- 20. a blood vessel that carries blood toward the heart
- 21. these glands help cool the body through perspiration
Down
- 1. this part of the nail is the growth area beneath the base of the nail
- 4. aka white blood cell
- 5. this cavity warms and humidifies the air before it enters the lungs
- 6. aka red blood cell
- 8. this layer is inferior to the epidermis; contains collagen and elastin fibers, giving the skin strength and elasticity
- 11. tiny air sacs where the exchange of oxygen and carbon dioxide occurs
- 12. system that is responsible for the exchange of gases between the body and the environment
- 13. a volume that indicates the amount of air that remains in the lungs after a forceful exhalation
- 14. the lower chambers that pump blood out of the heart
- 16. a blood vessel that carries blood away from the heart
- 17. the liquid component of blood that carries water, nutrients, hormones, and waste products