Recognizing the function of sensory nerves and their disorders

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Recognizing the function of sensory nerves and their disorders
Recognizing the function of sensory nerves and their disorders

The function of sensory nerves is to receive stimuli from outside the body to be conveyed to the brain. This allows the brain to respond accordingly to the given stimulus

The function of sensory nerves in general is to allow us to see, hear, recognize smells, and last but not least, feel something physically. This sense function belongs to the somatosensory system.

Recognizing the Functions of Sensory Nerves and Their Disorders - Alodokter

The sensory system or the senses works specifically in detecting certain stimuli. For example, the eye can only perceive light and color, while the ear can only detect sound. However, sometimes there are people who can feel certain stimuli, even though the stimulus they receive is not intended for that sense. This condition is called synesthesia.

The function of the sensory nerves in the somatosensory system in general is to sense touch, temperature, and pain stimuli. More specifically, this nervous system can make us feel fine and gross touch, vibration, pressure, and movement and changes in body position.

Function of Sensory Nerves in the Somatosensory System

All stimuli are received by the body through receptors, then sent to the peripheral nerves, to the spinal cord, and finally to the brain. The body has many receptors and each has its own duties and functions.The following are some types of receptors in the somatosensory system:

1. Pain

Nociceptors or commonly referred to as pain receptors are receptors whose job is to transmit pain signals from the body so they can reach the brain. The function of this sensory nerve is very important to protect ourselves.

For example, when you walk and accidentally step on a piece of glass, nociceptors will send a signal that your foot is injured. The brain that receives this signal will immediately instruct your leg to lift and avoid the source of the pain so that the damage is not greater.

2. Temperature

These receptors function to detect changes in environmental temperature on the skin. The function of this sensory nerve is important because our body needs to adjust its temperature to the ambient temperature to function properly.

3. Touch

Touch receptors are of various types and are mostly found in the skin. They all play a role in carrying out the function of sensory nerves to feel touch, vibration, pressure, and texture of an object.

4. Proprioception

Touch receptors also make us aware of our presence in a room. This function of sensory nerves is called proprioception. With this function, you can automatically feel the presence of all your body parts, while stabilizing their position according to the state of your environment.

Sensory Nerve Function Disorder

As mentioned above, the journey of stimuli to be translated by the brain goes through a long process. If there is a disturbance in any part of the journey, the brain may misinterpret the stimulus.

One of the disorders in sensory nerve function is peripheral neuropathy, which is a condition when there is a disturbance in the course of stimulation of the peripheral nerves. In this condition, you can feel something even though there is no stimulation or you can feel nothing when there is a stimulus.

Symptoms can include numbness, tingling (paresthesia), or even pain such as burning, or tingling in the feet or hands. Complaints of peripheral neuropathy usually develop slowly over time.

Another danger that can occur due to this condition is that the body cannot feel pressure or touch normally, causing balance disorders when walking. In addition, the body can also not realize if there is a painful stimulus, thus causing the appearance of injuries that are not realized.

By knowing the function of sensory nerves for the body and the symptoms of sensory nerve dysfunction, you can become more alert to the early symptoms of sensory nerve disorders.

If you feel complaints such as a thick feeling, tingling, or like pins and needles, check with your doctor to get an examination so that the cause of the complaint can be immediately identified and resolved.

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