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an organ, gland, or muscle capable of being activated by nerve endings |
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negative feedback
a corrective mechanism that opposes or negates a variation from normal limits |
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ventral
anterior or front |
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posterior
toward the back; dorsal |
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inferior
below, in reference to a particular structure, with the body in the anatomical postion |
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distal
fartest from the point of attachment of a limb or origin of a structure |
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receptor
some type of sensor that monitors and responds to changes in the enivironment |
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element
any of the building blocks of matter; oxygen, hydrogen, carbon for example |
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compound
substance of two or more different elements, the atoms of which are chemically united |
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ion
an atom with a positive or negative electric charge |
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salt
ionic compound that dissociates into charged particles (other than hydrogen or hydroxyl ions) when dissolved in water |
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