Which statement about pain is FALSE? a) Pain receptors are called nociceptors. b) The primary sensory neurons associated with pain secrete substance Pas neurotransmitter c) Sharp, localized pain sensations travel over small, myelinated (A delta) axons. d) Pain receptors may respond to intense mechanical deformation, excessive heat and many chemicals. e) Perception of pain cannot be suppressed at any level of the CNS

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