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specialized cell

cell that is uniquely suited to performing a particular function

nervous tissue

tissue composed of neurons

muscle tissue

A body tissue that contracts or shortens, making body parts move.


metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes

feedback inhibition

A method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway.


a cell that is specialized to conduct nerve impulses


the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle


refers to the chemical substance released from nerve endings which exerts effects on an adjacent nerve cell across a short synapse

central nervous system

the portion of the vertebrate nervous system consisting of the brain and spinal cord

peripheral nervous system

the section of the nervous system lying outside the brain and spinal cord


anterior portion of the brain consisting of two hemispheres


The portion of the lower brain that coordinates and organizes bodily movements for balance and accuracy

brain stem

the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus

sensory receptor

an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation

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