2. Start

3. 1 2 1 4 3 2 1 4 3 2 1 4 3 2 4 3 1 2 3 4 JointsDiseases Describe Muscles Describe Skeleton Other Systems

4. 1 Lets you straighten and bend your leg What is …hinge joint Click here for answer back

5. 2 Lets you move your arm all the way around. back Click here for answer What is …ball-and-socket joint

6. 3 Lets you move around your wrist. back Click here for answer What is …gliding joint

7. 4 Type of joint in which bones move very little. In your cranium. back Click here for answer What is …fixed joint

8. 1 If oil blocks too many hair follicles, this can develop. back Click here for answer What is …acne

9. 2 A disease in which joints hurt and become stiff. back Click here for answer What is…arthritis

10. 3 A disease in which bones become weak and soft. back Click here for answer What is …osteoporosis

11. 4 If the genetic material in skin cells is damaged, it can cause cells to develop uncontrollably and become… back Click here for answer What is …cancer

12. 1 Type of muscle action that is under your control. back Click here for answer What is …voluntary

13. 2 Type of muscle action that is not under your control. back Click here for answer What is …involuntary

14. 3 Muscle that bends part of your body. back Click here for answer What is …flexor

15. 4 Muscle that straightens part of your body. back Click here for answer What is …extensor

16. 1 Name the bones that protect your heart and lungs. back Click here for answer What are …ribs

17. 2 What is the name of the bone that makes up your lower jaw? back Click here for answer What is …mandible

18. 3 These bones make up your fingers and your toes. back Click here for answer What is …phalanges

19. 4 Name the bone that is sometimes called your shoulder blade. back Click here for answer What is the…scapula

20. 1 Includes the heart, blood and blood vessels. back Click here for answer What is …cardiovascular system

21. 2 System responsible for taking in oxygen from the air and releasing carbon dioxide waste. back Click here for answer What is the…respiratory system

22. 3 System that breaks down food into substances the body can use. back Click here for answer What is the…digestive system

23. 4 Returns leaked fluids to blood vessels and helps get rid of bacteria and viruses. back Click here for answer What is the…lymphatic system