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endorphins
Naturally occurring molecules made up of amino acids. Endorphins attach to special receptors in the brain and spinal cord to inhibit pain signals.
Pfeiffer syndrome
Many of the characteristic facial features of Pfeiffer syndrome result from the premature fusion of the skull bones. The head is unable to grow normally, which leads to bulging and wide-set eyes, an underdeveloped upper jaw, and a beaked nose.
closed head injury
An injury to the head or brain in which the skull remains intact.
acetylcholine (ACH)
A chemical in the body that carries messages between the nerves and muscles; a neurotransmitter.
CBDRP
Centers for Birth Defects Research & Prevention
stroke
A condition produced by a blood clot that lodges in an artery and blocks the flow of blood to a portion of the brain, producing symptoms ranging from paralysis of limbs and loss of speech to unconsciousness and death. Less commonly, a stroke may be the result of bleeding into the substance of the brain.
Alzheimer's disease
Severe form of dementia caused by significant deterioration of brain tissue.
Muenke syndrome
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.
NCEH
National Center for Environmental Health
Parkinson's disease
A progressive degeneration of nerve cells in the part of the brain that helps control muscle movement.
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