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.
Photo Credit John Lund/Blend Images/Getty Images. There are many causes for the deterioration of muscles. Muscle wasting, or atrophy, occurs in two basic forms: disuse atrophy in which the muscles waste away due to lack of exercise, and neurogenic atrophy, which is muscle deterioration due to disease or injury.