What is the function of receptors in our body? Think of situations where receptors do not work properly. What problems are likely to arise?

Receptors in our body located in sense organs such as ear, nose, eye, etc. These receptors collect information from the external environment in the form of stimuli and then sent them to the brain in the form of electric impulse. In the brain, Information is interpreted and instructions are sent to effector organ which revel responses. If receptor does not work properly, the environmental stimuli are not able to create any nerve impulse and body does not respond. For example-During cold, mucus membrane of our nose become thick that blocks the passage from where odor of perfume reaches the olfactory receptors. Thus, our brain does not receive any message to identify smell of a perfume.