Muscles turn chemical energy into heat and work during contraction. Straight from the science book.
No, they contract.
Chemical energy stored in the muscles is converted to thermal energy during muscle contraction. This process is not 100% efficient, with some energy being lost as heat.
Pneumatic changes in the lungs refer to the expansion and contraction of the lung tissue in response to changes in air pressure during breathing. The diaphragm and intercostal muscles work together to increase lung volume during inhalation, creating negative pressure that draws air into the lungs. During exhalation, the muscles relax, and the elastic recoil of the lung tissue expels air out of the lungs.
The spring coil effect in muscles refers to the ability of muscles to store energy during an eccentric contraction (lengthening phase) and release it during a concentric contraction (shortening phase). This mechanism helps to enhance the efficiency of movement and improve athletic performance by utilizing elastic energy.
The muscles of a runner transform chemical potential energy stored in carbohydrates and fats into mechanical energy used for movement. This process involves the breakdown of molecules like glucose to produce ATP (adenosine triphosphate), which is the primary energy source for muscle contraction during running.
muscular activitybreathing muscle contraction peristalsis
Lactic Acid is produced during extended muscle contraction by fermentation.
Atoms of different elements unite during chemical changes to produce at least one chemical compound.
Adenosine triphosphate (ATP) is the molecule that provides energy to muscles for contraction. When ATP is broken down during muscle activity, it releases energy that fuels muscle contraction.
Yes it is released/ absorbed during chemical changes.
Yes the contractile proteins generate force during contraction and are actin and myosin
Electromyography.Electromyography measures the electrical impulses of muscles at rest and during contraction.