things

4. organ in which bile is stored until needed to digest food
5. large brown organ to the right of the stomach that has many jobs, including making bile
6. system body system of organs and tissues that help fight infections
8. two bean-shaped organs that filter blood and make urine
12. gland master gland of the body, which releases hormones to control other endocrine organs
14. cord part of the nervous system that carries nerve signals between the brain and the body
17. largest part of the brain, which interprets information from the sensory organs; controls muscle actions and is responsible for intelligence, memory, and personality
18. system body system that produces chemical messengers called hormones, which regulate body processes
19. system body system that allows people to think, use the senses, move, and maintain important body processes

1. fish-shaped organ behind the stomach that makes many kinds of enzymes needed for digestion
2. part of the brain that controls coordinated, smooth muscle activity
3. system body system that breaks down food to provide nutrients and energy; also removes solid waste from the body
7. hormone substance produced in the thyroid that increases the rate at which the body uses energy
9. organ that stores urine until it can be pushed out of the body
10. organ filled with white blood cells; filters blood
11. stem part of the brain that controls the heartbeat and breathing rate
13. system body system that removes liquid waste from the body
15. finger-shaped organ attached to the large intestine; made of lymphatic tissue
16. cell that is specialized to receive and send signals