Organ systems

1. Hard, dense connective tissue that makes up most of the adult skeleton.
4. The organ that pumps blood throughout the body.
7. Body system that acts as a barrier, detects stimuli, and regulates your body temperature.
9. Female reproductive organs that produce eggs.
11. The organ that receives food from the esophagus and breaks down food.
13. The _____ glands make and release hormones like adrenaline, maintain blood pressure, and regulates metabolism.
16. Body system that helps with immune responses and tissue drainage.
18. The organ that holds urine until it is released from the body.
20. Body system that produces eggs and sperm.
22. The organ that receives and transmits messages to and from the body, and oversees activity.

2. The body system that is the support structure and central framework for your body.
3. The largest organ of the human body.
5. The _____ muscles are a part of the muscular system which lines the heart wall and helps the heart to pump blood throughout the cardiovascular system.
6. This body system uses the heart to pump blood throughout your body.
8. The body system that controls the things that your body does.
10. Body system that is responsible for nearly all movement throughout the body.
12. Body system that brings in oxygen and lets out carbon dioxide when you breathe.
14. The Body system that breaks down food into nutrients and energy.
15. ____ ____ are small bean-shaped tissues that act as filters in the lymphatic vessels.
17. Body system that produces and secretes hormones throughout your body.
19. The body system that collects and rids the body of wastes.
21. The organs where the exchange of oxygen and carbon dioxide takes place.