Chitin is also found in the cell walls of certain fungi and algae. Biology chitin definition of by the free dictionarycollins english dictionary. It is a primary component of cell walls in fungi, the exoskeletons chitine, which was derived 1821 from greek word (chiton), meaning covering although you may have never heard it, chitin abundant nature.
Amyotrophic lateral sclerosis (ALS) is a progressive neurological disease that causes muscle weakness and gradually impacts on the functioning of the body, leading to eventual death. It is also referred to as motor neuron disease or Lou Gehrig's disease, named after the famous baseball player who had the condition.
ALS is often called Lou Gehrig's disease, after the famous baseball player who was diagnosed with it. ALS is a type of motor neuron disease that causes nerve cells to gradually break down and die. In the United States, ALS is sometimes called motor neuron disease.In most cases, doctors don't know why ALS occurs. A small number of cases are inherited.ALS often begins with muscle twitching and weakness in an arm or leg, or sometimes with slurring of speech.n the United States, ALS is sometimes called motor neuron disease. In most cases, doctors don't know why ALS occurs. A small number of cases are inherited. ALS often begins with muscle twitching and weakness in an arm or leg, or sometimes with slurring of speech.