★ Musculoskeletal System Quiz
During muscle contractions,
A. The sarcomeres shorten
B. The actin filaments slide over the myosin filaments
C. The actin filaments move toward the middle of the sarcomere during contraction and away on relaxation
D. The muscle fibers thicken
E. All of these occur
Select your answer:
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Hygiene and Nutrition › ViewWe should put waste in a______.
A. Dustbin
B. Pocket
Cells & Body Systems › View
The Central Nervous system includes what two organs?
A. Brain and Nerves
B. Brain and Spinal Cord
C. Spinal cord and Nerves
D. Nerves and Neurons