Answer:
The incoming stimuli are converted into the electrochemical signals and are delivered to the central nervous system in form of nerve impulses for perception and interpretation.
Step-by-step explanation:
The sensory receptors sense the incoming stimuli such as a change in light intensity or temperature. This stimulates the receptors. A sensory receptor converts the energy in the stimulus into a graded potential. This process is called transduction. For example, olfactory receptors of nose transduce the chemical energy of the odorant molecules into electrical energy in the form of a graded potential.
As a graded potential in a sensory neuron reaches a threshold, a nerve impulse is generated and is propagated toward the CNS for integration and perception.