Summary. 1  Some knowledge of basic first aid could mean the difference between life and death. 2  Consider doing a first aid course, so that you will be able to manage if someone is injured or becomes ill. 3  CPR is a life-saving skill that everyone should learn. 4  Keep a range of first aid kits handy at home, in the car and at work.
The loss of motor neurons leads to weakness and wasting (atrophy) of muscles used for activities such as crawling, walking, sitting up, and controlling head movement. In severe cases of spinal muscular atrophy, the muscles used for breathing and swallowing are affected.
Muscle Atrophy. Muscle atrophy is when muscles waste away. The main reason for muscle wasting is a lack of physical activity. This can happen when a disease or injury makes it difficult or impossible for you to move an arm or leg.You may have muscle loss if one of your limbs appears smaller (not shorter) than the other.iseases can cause muscles to waste away or can make movement difficult, leading to muscle atrophy. These include: 1  amyotrophic lateral sclerosis (ALS, also known as Lou Gehrigâs disease), which affects nerve cells that control voluntary muscle movement.