VPB 121: Veterinary Physiology - II (2+1)

RECEPTOR SPECIFICITY

• Adequate stimulus is preferred, if large magnitude of stimuli that can provoke response from many receptors.
• Some receptors are designated by nature to respond to different stimuli. Example:  Nociceptors to detect pain which may be due to temperature, pressure, or chemicals.  These are termed as Polymodal receptors.
• Receptive field : It is the region in the sensory surface of afferent neuron which detects the stimuli to generate response upon stimulation.