Exteroceptor

Exteroceptor (from Latin exterus - external and receptor - receiving) is a receptor that perceives irritations from the external environment. Exteroceptors are located on or near the surface of the body and respond to physical and chemical stimuli in the environment.

Exteroceptors include:

1. Mechanoreceptors - respond to mechanical stimuli (touch, pressure, vibration). Types: digital corpuscles, cones, free nerve endings.

2. Thermoreceptors - respond to temperature stimuli. Types: cold and heat receptors.

3. Nociceptors (pain receptors) - respond to damaging influences.

4. Chemoreceptors - react to chemicals. Types: olfactory and taste buds.

5. Photoreceptors - react to light. Located in the retina of the eye.

Thus, exteroceptors are peripheral sensory receptors that provide communication between the body and the external environment and the perception of various stimuli from the outside. Information from them enters the central nervous system.

Exteroceptors are sensory cells on the surface of the body and inside it that perceive signals from the outside world. They provide us with the sense of touch, pain sensitivity, as well as many other senses such as smell, taste and hearing.

Exteroceptive sensations can be tactile, where we sense temperature, pressure, texture, and the placement of objects in space. We can also experience pain when exteroceptive cells are stimulated. While we eat, we can taste the tastes of food and drinks, and our ears pick up sounds from the environment.

There are many areas in the body where exteroceptor receptors are located. The skin in particular is rich in these cells, allowing us to sense and interact with our environment. The nose and mouth also contain exteroceptors that help us sense smells and tastes. The ears contain nerve cells that are responsible for perceiving sounds from the outside.

Sensory signals from exteroceptors can be transmitted from them to the brain through the nervous system. The interaction between receptors and the nervous system is a key aspect of sensory experience. This allows us to adapt to changing environmental conditions and function effectively.

In addition, the exteroceptor system ensures the safety and survival of the body. We learn from our mistakes and learn from past experiences to adapt to new environmental conditions