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Today's Terms
Alexander disease
Definition:
Alexander disease is considered one of the leukodystrophies, a group of disorders where the primary abnormality is the inability to maintain the fatty covering (myelin) that insulates nerve fibers in the brain. Alexander disease is a rare disorder of the nervous system that usually begins during infancy or early childhood.
brain
Definition:
The part of the central nervous system inside the skull. Its functions include muscle control and coordination, sensory reception and integration, speech production, memory storage and the elaboration of thought and emotion.
Muenke syndrome
Definition:
The primary feature of this disease is prematurely fused skull bones along the coronal suture, the growth line which goes over the head from ear to ear. This can result in an abnormally shaped head, wide-set eyes, and flattened cheekbones.
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