Please help multiple choice. Thanks?

13. A skeletal muscle attaches to

A. bones of the skeleton.
B. body organs.

C. the heart.

D. a ligament.




14. Possible causes of muscle soreness include all of the following except

A. overstretching.
B. torn muscle fibers.

C. muscular spasms reducing blood flow.

D. insufficient lactic acid.




15. Muscular atrophy involves a process in which

A. muscle fibers enlarge and increase protein filaments
B. muscles deteriorate resulting in a decrease in the size and strength of muscle tissue.

C. muscle fibers replace connective tissue.

D. muscles deteriorate in size, but remain the same shape.




16. Synovial joints are freely movable joints that

A. include the neck, tibia, fibia, elbow, and knee.
B. connect the rib cage to the breastbone.

C. comprise the majority of joints in your body.

D. require little protection due to the lubricating fluid found in the joints.
Answer:
13. a
14. d
15. b
16. a

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A D B A

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Is this a trick question? My guesses are 13. D, 14. D, 15. B, 16. C I can't be certain because it's been a while since I was in school...

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A - ligaments connect two bones
D
B
C - vertebral joints as in the neck are not synovial

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