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Fetal Alcohol Syndrome

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Definition Fetal alcohol syndrome (FAS) is defined as the most severe form of fetal alcohol spectrum disorder, or FASD. It is characterized by abnormalities in facial features, slowed growth, and abnormalities in the structure and functioning of the brain and spinal cord. Description ’ s ability to learn, ’ s learning and behavioral problems persist over his or her lifetime, ’ s facial features usually become less noticeable as he or she Demographics Researchers estimate that about 1 percent of the general U.S. population is affected by fetal alcohol spectrum disorders and that 40,000 babies are born every year with some kind of birth defect caused by the mother drinking. However, fetal alcohol syndrome itself is the only disorder in this group that has been formally defined by the Centers for Disease Control and Prevention (CDC) and by the International Classification of Diseases (ICD). Fetal alcohol syndrome is estimated to occur in one or two out of every 1,000 live births in
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X ray showing the skull and spine of a person with achondroplasia

By yzen
X ray showing the skull and spine of a person with achondroplasia Achondroplasia Definition Achondroplasia, or short-limb dwarfism, is the most common form of abnormally short stature in adults. It is caused by a mutation in a single gene on chromosome 4 that regulates the conversion of cartilage to bone. This gene is the only gene that is known to be associated with achondroplasia. Description Achondroplasia is basically a disorder of bone development. The skeleton of a human fetus is composed primarily of cartilage, a dense and somewhat elastic form of connective tissue that gradually turns to bone during normal development. In a person with achondroplasia, a gene that is involved in the process of bone formation produces too much of a protein that limits bone growth. As a result, the person with achondroplasia has unusually short bones in the arms and legs and other skeletal abnormalities. They also usually have difficulties with posture, joint disorders, and breathing problems
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Illustration showing parts of the brain affected by Alzheimer

By yzen
Alzheimer Disease Alzheimer disease, or AD, is a terminal disease of the central nervous system that has no effective treatment or cure. Its most notable symptom is dementia beyond the effects of normal aging. It is named for Alois Alzheimer (1864 disease at a medical meeting in 1906. — the loss of a person ’ s memory and other cognitive functions – 1915), a German doctor who first described a patient with the
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