Anatomy 3

2. breaks down food into nutrients and waste
4. natural covering
5. also known as ductless glands
8. responsible for purifying the body by eliminating waste matter
9. breathing out
11. plays a major role in sexual development, sleep, and metabolism
14. performs the function of producing offspring and passing on the genetic code from one generation to another
16. enables respiration, consists of the lungs and air passages
19. controls the steady circulation of the blood throughout the body
23. excrete water and waste products
24. digests food
25. regulate blood calcium and phosphorus levels
26. spongy tissues composed of microscopic cells in which inhaled air is exchanged for carbon dioxide in one breathing cycle
27. controls metabolic processes of the body, including fight or flight response
28. secretions such as insulin, adrenaline, and estrogen that stimulate functional activity or other secretions in the body
29. muscular wall that separates the thorax from the abdominal region and helps control breathing

1. the external protective covering of the body
3. serves as a protective covering and helps regulate the body's temperature
6. removes waste created by digestion
7. secretory organs that remove and release certain elements from the blood to convert them into new compounds
10. m protects the body from disease by developing immunities and destroying disease-causing microorganisms
12. blood plasma found in the spaces between the cells
13. secretes enzyme-producing cells that are responsible for digesting carbohydrates, proteins, and fats
15. controls metabolism
17. digests food
18. holds skeletal system in place; contracts and moves various parts of the body
20. breathing in
21. most complex organ of the endocrine system
22. controls body's vision