Sense Organs
Sense organs are specialized structures in living organisms that detect specific stimuli from the environment and transmit signals to the nervous system for interpretation. These stimuli include light, sound, touch, temperature, and chemicals. Sense organs consist of groups of receptor cells that are sensitive to particular types of stimuli.
Receptor Cells
These are specialized cells within the sense organs that respond to specific stimuli. For example, photoreceptor cells in the eyes detect light, mechanoreceptor cells in the skin detect touch, and chemoreceptor cells in the nose detect chemicals.
Nerve Pathways
Once the receptor cells detect a stimulus, they generate electrical signals that are transmitted along nerve pathways to the brain or spinal cord.
Brain Interpretation
The brain processes the signals received from the sense organs and interprets them as specific sensations, such as vision, hearing, touch, temperature, or taste.