they are acted on by enzymea and release the energy they contain
proteins
Although there are a few sources/pathways, typically its glucose (a sugar/carbohydrate) that refuels muscle glycogen
Yes, muscle cells can become shorter through a process called muscle contraction. This happens when the filaments within the muscle cells slide past each other, causing the muscle to contract and shorten.
Isotonic contractions. This happens when the muscle shortens as it contracts
When the body is inactive, muscle cells or fibers undergo gradual atrophy, leading to a decrease in size and strength. This occurs due to a decrease in protein synthesis and an increase in protein breakdown. Regular exercise is necessary to maintain muscle mass and function.
glucose
The nutrient that is not digested but stimulates intestinal muscle contractions is fiber. Fiber is a type of carbohydrate that may be soluble or insoluble.
What happens to the bones when muscle shortening
coronary arteries
All of them.
The Coronary arteries
proteins
A muscle pull happens when muscles are overworked or over stretched
There are no 'nutrients' in calcium. Calcium is a nutrient. It's essential to muscle movement and it composes most of the mass in bones.
muscle contraction
The coronary arteries feed the heart.
Protein