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touches. It has a high sensitivity (low threshold). There are many such receptors, for
example, in the fingertips.

Figure 42. The Meissner's body, or tactile body

The nerve end of the tactile body is surrounded by Schwann cells (auxiliary cells
of the nervous tissue). The encapsulation consists of flattened supporting cells arranged
in the form of horizontal plates surrounded by a connective tissue capsule. One nerve
fiber wriggles between the plates all over the body.
The feeling of deep pressure (for example, from an injection) is created by
lamellar corpuscles (Pacini corpuscles), which are deeper in the dermis, and some free
nerve endings.
Meisner's corpuscles do not recognize dangerous stimuli. This is signaled
exclusively by free nerve endings.
With age, the number of tactile bodies in the skin decreases.
Merkel cells, or tactile discs (figure 43), play an important role in sensing the

structure of the surface, allowing you to perceive light touches. They are oval-shaped
mechanoreceptors.

Figure 43. Merkel cells, or tactile discs

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