Mesophragm

Mesophragma (mesophragma, lnh; meso- + Greek phragma septum; synonym: line m, membrane mesophragma, stripe m) is an internal partition that divides the chest cavity of insects into separate chambers. It is a thin chitinized plate extending from the dorsal side of the insect's body.

The mesophragm serves to attach the wing muscles and strengthen the chest walls. The number of mesophragms corresponds to the number of breast segments - usually there are 2 or 3. In some insects, mesophragms may be absent or reduced.

Thus, the mesophragm is an important element of the internal structure of the insect chest, performing supporting and muscular functions. Its presence and development is closely related to the ability to fly in different insect species.

Mesophragm refers to the thin layers of the epidermis located between the skin and the underlying layers of the dermis. It consists of keratinocytes arranged in one or more rows and separated by thin strips of collagen.

The mesophragm has an important role in protecting the skin from external influences such as ultraviolet radiation, bacteria and other microorganisms. It also plays a role in maintaining the skin's moisture balance as it contains a large amount of water.

In addition, the mesophragm can be damaged in various skin diseases such as psoriasis or eczema. This can lead to itching and other unpleasant symptoms.

Overall, the mesophragm is an important component of the skin and plays an important role in its protection and function.