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How do exteroceptors, interoceptors, and proprioceptors differ?
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Senses
Vespid wasps (Vespidae), similar to other insects, have compound eyes that consist of thousands of tiny optical units known as ommatidia, which contain light-sensitive photoreceptor cells.
Biological receptors are classified based on the environment they monitor. They function as transducers, converting energy from these environments into electrical impulses sent to the central nervous system.1
The primary differences between these receptors are as follows:
- Exteroceptors: These report on the external environment. They are responsible for the senses of sight, hearing, smell, taste, and touch.1
- Interoceptors: These sample the internal environment of the body itself. They monitor physiological states such as blood pressure, osmotic pressure of the blood plasma, and the conditions of internal organs like the bladder and alimentary canal.12
- Proprioceptors: These sense the posture and movements of the body. They provide information about the position of body parts relative to one another and the position of the body in space. For example, they measure the lengths of muscles and the positions of joints.312
While these categories are distinct, some overlap exists. For instance, certain proprioceptors that detect gravity to determine body position in space can also be considered exteroceptors.3