well if muscles run out of oxygen you might slow down and not breath proppely and you might also die.
When muscles are exercised extensively without enough oxygen, they switch to anaerobic metabolism, producing lactic acid as a byproduct. This can lead to muscle fatigue, cramping, and a burning sensation. It also limits the muscles' ability to generate energy efficiently, affecting performance.
When muscles work without enough oxygen, they produce a byproduct called lactic acid.
Atrophy
Your muscles burn them and without sufficient protein they will atrophy-in other words your body will start to burn exisitng protein in your muscles.
Your muscles will be of almost no use because you will feel fatigue and you wont have and boost to keep yourself moving.
Coronary circulation is blood flow to the muscles of the heart. Without a working heart, the baby would die.
Yes, if a limb is not exercised, the related muscles will lose strength over time due to a process called muscle atrophy. This occurs because muscles require regular use to maintain their size and function; without stimulation, the body breaks down muscle tissue for energy. Consequently, prolonged inactivity can lead to decreased muscle mass and strength. Regular physical activity is essential for preserving muscle health.
Astronauts' muscles atrophy in space due to the decreased work they do without Earth's gravity.
Voluntary muscle movements are the result of conscious effort by the brain. Involuntary muscles such as the heart or smooth muscles in the gut and vascular system contract as a result of non-conscious brain activity or stimuli proceeding in the body to the muscle itself.Your answer: The heart and smooth muscles in the gut and vascular system (lungs) are muscles that work "without thinking about it" -- we call these "involuntary" muscles.
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Involuntary muscles are those that move without conscious control.
cardiac muscles