Match the phrase with the correct term.
1. cells in the muscles
lactic acid
2. removed by the blood
range of motion
3. improves the health of the muscles
myofibrils
4. how far a body part can move in any direction
muscle fibers
5. can be damaged during exercise
stretching
6. injury and shortening of the myofibrils
scarring

Which statement best illustrates that problem solving can create new medical devices? robert hooke was in charge of verifying the information that was sent to the royal academy. william harvey did experiments with apes to learn about the circulatory system. the stethoscope was invented because the physician did not want to put his head on women's chests to listen to their heart and lungs. anton van leeuwenhoek was a very curious man and looked at just about everything under this microscope.