Answer:
Muscle contraction is the activation of tension-generating sites within muscle fibers. In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as by holding a heavy book or a dumbbell at the same position. The termination of muscle contraction is followed by muscle relaxation, which is a return of the muscle fibers to their low tension-generating state.
Explanation:
Answer:
go to a hospital
Explanation:
Check with your local pediatric doctor to see what they tell you to do
Answer:
(B) steps
Explanation:
A pedometer is a small device that counts the number of steps you take. It is also called a step counter. Some pedometers also tell you how far you've walked in miles or how many calories you've burned. But mile and calorie readings are estimates and may not be accurate.
