Sensory organs
- They are peripheral departments of the corresponding sensory systems.
- The organs are specifically intended to perceive visual, auditory, statokinetic, olfactory, and gustatory stimuli.
- They contain receptors formed by:
- neurons — sensorineural or primary sensory receptors (organs of vision and smell);
- specialized epithelial cells associated with sensitive endings of neurons — sensoepithelial or secondary sensory receptors (organs of hearing, equilibrium, and taste).
Sensory system (analyzer)
- Such a system is a complex of structures that perceive signals from the external or internal environment to analyze and synthesize them.
- It should include:
- a peripheral section — perceives the signal and converts its energy into a nerve impulse;
- conductive section — pathways to allow the nerve impulse brain entering;
- a central section — corresponding cortical nerve center