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Changes in muscle tone, especially muscle spasms and spasticity; Crossed eyes (strabismus) Decreased understanding of verbal communication (aphasia) Deterioration of handwriting; Difficulty at school; Difficulty understanding spoken material; Hear...
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ALD causes problems in the peroxisomes, tiny cellular structures that are involved in breaking down large molecules of fats into smaller ones that can be used by the body. In ALD, the peroxisomes cannot break down a type of fat called very long ch...
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The genetic defect in ALD causes a decrease in the ability to degrade very long chain fatty acids. These build up in the adrenal glands, brain, plasma, and fibroblasts. The build-up of very long chain fatty acids interferes with the ability of the...
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Coma, from the Greek word "koma," meaning deep sleep, is a state of extreme unresponsiveness, in which an individual exhibits no voluntary movement or behavior. Furthermore, in a deep coma, even painful stimuli (actions which, when performed on a ...
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Coma, from the Greek word koma , meaning deep sleep, is a state of extreme unresponsiveness, in which an individual exhibits no voluntary movement or behavior. Furthermore, in a deep coma, even painful stimuli (actions which, when performed on a h...
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Strabismus is a disorder in which the eyes do not line up in the same direction when focusing. The condition is more commonly known as "crossed eyes."
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Strabismus is a condition in which the eyes do not align in the same direction. It is also called crossed eyes or squint.
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Hearing loss is the total or partial inability to hear sound in one or both ears. See also: Hearing loss of aging
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Hearing loss is any degree of impairment of the ability to apprehend sound.
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Hearing loss is any degree of impairment of the ability to comprehend sound.
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Hearing loss is any degree of impairment of the ability to apprehend sound.
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Hearing impairment is the temporary or permanent loss of some or all hearing in one or both ears.
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Hearing begins in the womb—pregnant women have reported feeling the fetus move in response to loud noises at 31 weeks (7 weeks before full-term delivery). Newborns are sensitive to the location, frequency, pitch, and volume of sounds. Loud sounds ...
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A contracture is a tightening of muscle, tendons, ligaments, or skin that prevents normal movement. See also: Becker's muscular dystrophy; Cerebral palsy; Duchenne muscular dystrophy; Dupuytren's contracture; Volkmann's contracture.
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Cyanosis is a bluish color to the skin or mucus membranes due to a lack of oxygen in the blood.
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A seizure is the physical findings or changes in behavior that occur after an episode of abnormal electrical activity in the brain. See also: Generalized tonic clonic seizure; Partial (focal) seizure; Petit mal (absence) seizure; Epilepsy; Fever (...
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A seizure is a sudden change in behavior characterized by changes in sensory perception (sense of feeling) or motor activity (movement) due to an abnormal firing of nerve cells in the brain. Epilepsy is a condition characterized by recurrent seizu...
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A seizure is a sudden change in behavior characterized by changes in sensory perception (sense of feeling) or motor activity (movement) due to an abnormal firing of nerve cells in the brain . Epilepsy is a condition characterized by recurrent seiz...
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A temporary series of uncontrollable muscle spasms brought on by unusual electrical activity in the brain. Also known as convulsion, clonic seizure, or tonic-clonic seizure. A seizure is characterized by a sudden episode of un- controllable brain ...
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Paralysis is defined as complete loss of strength in an affected limb or muscle group.
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Paralysis is defined as complete loss of strength in an affected limb or muscle group.
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True muscle weakness means that full effort does not produce a normal muscle contraction or movement. A voluntary muscle contraction is generated when the brain sends a signal through the spinal cord and nerves to a muscle.
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Weakness is a reduction in the strength of one or more muscles.
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A charley horse is the common name for a muscle spasm, especially in the leg. Muscle spasms can occur in any muscle in the body. When a muscle is in spasm, it contracts without your control and does not relax.
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Muscle spasms and cramps are spontaneous, often painful muscle contractions.
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A developmental delay is any significant lag in a child's physical, cognitive, behavioral, emotional, or social development, in comparison with norms.
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Any delay in a child's physical, cognitive, behavioral, emotional, or social development, due to any number of reasons. Developmental delay refers to any significant retardation in a child's physical, cognitive, behavioral, emotional, or social de...
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Spasticity is stiff or rigid muscles with exaggerated, deep tendon reflexes (for example, a knee-jerk reflex. The condition can interfere with walking, movement, or speech. See also: Muscle cramps
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Spasticity is a form of muscle overactivity. A spastic muscle is one in which a muscle resists being stretched out, and the resistance to stretch is greater the faster the muscle is moved. Spasticity is often used as an umbrella term for other for...
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Spasticity is an abnormal increase in muscle tone. It may be associated with involuntary muscle spasms , sustained muscle contractions (dystonia), and exaggerated deep tendon reflexes that make movement difficult or uncontrollable. Although it mos...
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Hyperpigmentation is the increase in the natural color of the skin.
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Anorexia is characterized by a loss of appetite or lack of desire to eat.
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Visual disturbances are abnormalities of sight. Visual disturbances associated with neurological disorders often include double vision (diplopia), moving or blurred vision due to nystagmus (involuntary rapid movements of the eyes), reduced visual ...
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Hyperactivity is a state of too much muscle activity. This term is also used to describe a situation when a particular portion of the body is too active, such as when a gland produces too much of its particular hormone. See also: Attention deficit...
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Dysphagia is a disorder of swallowing.
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