__Tucked in the back of Brocaâs area is the Pars triangularis, which is implicated in the semantics of language. When you stop to think about something someoneâs saidâa line in a poem, a jargon-heavy sentenceâthis is the part of your brain doing the heavy work.
Know the causes. Brain atrophy is shrinking of the brain caused by the loss of its cells, called neurons. Two types of brain atrophy can occur; generalized and focal. Generalized atrophy refers to neuron loss throughout the entire brain, and focal atrophy refers to neuron loss in a specific brain region.
The most common reason for atrophy to occur in the legs is disuse. Lack of activity for any reason -- illness, injury, seated desk job, sedentary lifestyle -- can lead to loss of leg muscle. Alcoholism and malnutrition can also inhibit muscle growth and cause the body to use muscle proteins for energy.Muscle loss also occurs as part of the natural aging process. A less common cause of atrophy of the leg muscles is injury or illness affecting the nerves that connect to the muscles.Amyotrophic lateral sclerosis, Guillain-Barre syndrome, neuropathy and polio are examples of nerve disease. less common cause of atrophy of the leg muscles is injury or illness affecting the nerves that connect to the muscles. Amyotrophic lateral sclerosis, Guillain-Barre syndrome, neuropathy and polio are examples of nerve disease.