|the change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated, serving to transmit nerve signals|
|an end organ or a group of end organs of sensory or afferent neurons, specialized to be sensitive to stimulating agents|
cicatrix cic·a·trix (sĭk'ə-trĭks', sĭ-kā'trĭks)
n. pl. cic·a·tri·ces (sĭk'ə-trī'sēz, sĭ-kā'trĭ-sēz')
A scar left by the formation of new connective tissue over a healing sore or wound.