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Today's Terms
Pfeiffer syndrome
Definition:
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.
endorphins
Definition:
Naturally occurring molecules made up of amino acids. Endorphins attach to special receptors in the brain and spinal cord to inhibit pain signals.
enkephalins
Definition:
(en-KEF-uh-lins). Naturally occurring molecules in the brain. Enkephalins attach to special receptors in the brain and spinal cord to inhibit pain messages. They also affect other functions within the brain and nervous system.
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