Sensory cells are receptor cells. Our sense organs, such as the inner ear, nose, tongue, eyes, and skin, are normally where they are found. Receptors have the following functions:

They are aware of environmental stimuli like heat or discomfort.
They also deliver a message to the spinal cord by triggering an impulse in the sensory neuron. External stimuli transmitting messages to the brain are not perceived when receptors are destroyed. This could cause harm to the body's tissues and organs. For example, if a person's receptors are damaged, he or she may not be able to hear when they are called out.