This happens when something touches the skin under your nail, if you accidentally cut or accidentally damage a nail. unique pain It means you have experienced.

The real question is, why are some parts of our body different from other parts of the body? much more sensitive?

First, let’s take a closer look at the anatomy of the fingers and the physiological factors involved in this part of the body.

our hands, practice and develop motor skills quite adept at it. For example, we don’t think about how we can do all these things while holding a pen and writing, picking up and putting down a glass, or trying to draw an object. Because our hands and fingers allow it.

We perform these skills with 3 main nerves and 27 different bones that control our muscles.

In our hands, median, ulnar and radial 3 basic nerves consists. We can think of these nerves as a main route with thousands of branches and smaller parts of these branches.

Our fingertips are the area with the highest density of nerve endings compared to all other parts of our body.

In addition to an average of 2,500 per square centimeter of this nerve ending density, some of these nerve receptors our sensitivity raises it quite a bit.

Nails are another structure that enhances the functionality of our hands and fingertips.

Nails are actually a flattened shape that most mammals have. claw can be expressed as Claws, which provide defense and basic needs of mammals, have changed over time and their changing needs. through evolutionary changes turned into nails.

Fingernails, like claws, consist of a hard layer of keratin.

However, unlike the claws that animals have, they are completely covered in gold when they become loose or damaged. unprotected nerve endings arises.

So, although our nails have a very hard structure, why is the area under the nail so sensitive?

Nerve endings are concentrated in certain parts of our body to increase sensitivity and functionality, just like our fingertips. Therefore connection of dense nerve endings and hard protective material inevitably sensitive.

The nerves under our nails are rarely exposed to the external environment. The skin under the nails is covered with nails for 99% of its existence, protected against external factors to fit.

Since our undercut skin does not absorb the stimuli of the outside world, such as our nail tips, it is against any external factor. is unprepared and on contact with shocking pain is confronted.

C fibers make our sense of touch in our fingertips more sensitive.

We perceive the texture or warmth of an object we touch thanks to these fibers, but our undernail tissues layers of defense doesn’t have one. Because nails already fulfill this task.

• Sources: Science ABC, form, ask the scientists