20. a is an area where two bones meet and where one bone moves on another a. tendon
b. ligament
c. joint
d. capsule

21. bones in your joints are covered with a smooth and slippery material called:
a. cartilage
b. synovial fluid
c. synovial membrane
d. serous fluid

22. the joints allow for turning and rotation
a. pivot
b. hinge
c. ball and socket
d. gliding

23. tensing of the muscles that does not involve joint movement is called:
a. isometric stretching
b. static stretching
c. isotonic stretching
d. pnf stretching

24. stretches that do not involve motion and are held brief periods of time are called:
a. isometric stretching
b. static stretching
c. isotonic stretching
d. pnf stretching

25. refers to the body’s torso, which include abdominals, glutes, and lower back
a. girth
b. core
c. circumference
d. none of above

26. modern exercise training method designed to improve strength, posture and flexibility, not spiritual in nature is called:
a. yoga
b. pilates
c. range of motion exercise
d. step aerobics

27. the benefits of yoga include:
a. gaining spiritual balance and flexibility
b. massages and stimulates the glands and internal organs
c. reduces signs of aging
d. all of the above

28. the heart has one way valves which open with each heartbeat
a. one
b. two
c. three
d. four

29. the pulmonary valve and the aortic valve as the ventricles begin to contract
a. close
b. open
c. contract
d. relax

please answer all questions