Answer:

13. C

14. D

17. A

19. D

20. C

Answer:

13. Skeletal muscles are attached to the

a. Stomach

b. lungs

C. Skeleton

d. Involuntary Muscles system

14. The muscular system is a(n)

a. Large

c. unique

b. Small

d. organ

17. Another rerm for muscles become shorter.

a. contracting

b. extending

19. The combination of skeletal muscles and bones working together is called the system.

a. muscular

b. musculoskeletal

c. skeletal

b. reflex

20. the place where two or more bones meet.

a. tendon

b. ligament

c. joint

d. muscle

#Explanation:

14. d. organ

• The muscular system is an organ system consisting of skeletal, smooth, and cardiac muscles

17. a. contracting

• concentric or contracting Isotonic muscle contractions can be either concentric (muscle shortens) or eccentric (muscle lengthens).

19. b. musculoskeletal

• The skeleton and muscles function together as the musculoskeletal system.

20. c. joint

• Joints are the place where two bones meet or connect.