Commissure Epithalamic [. Epithalamica (Posterior), Pna; C. Posterior (Cerebri), Bna; C. Caudalis, Jna; Syn. S. Zadnya]

Epithalamic commissure: structure and functions

The commissure epithalamic, also known as the posterior commissure, is a curved plate of white matter that is located in the posterior wall of the third ventricle at the border between the midbrain and diencephalon. It contains nerve fibers connecting the nuclei of these parts of the brain.

Commissure epithalamic has several synonyms, such as c. epithalamica (posterior), pna; With. posterior (cerebri), bna; c. caudalis, jna; syn. With. rear It is one of the structures that belong to the epithalamus, which is part of the diencephalus.

The functions of the commissure epithalamus are not fully understood, but studies have shown that it plays an important role in regulating circadian sleep-wake rhythms. Other studies have shown that this structure is involved in the formation of emotional reactions and the regulation of behavior.

The epithalamic commissure is also associated with participation in the regulation of the release of melatonin, a hormone that regulates sleep and wakefulness, and also has other important functions in the body.

Although the scientific community continues to explore the functions of the commissure epithalamus, it is already known that this structure plays an important role in the regulation of circadian rhythms, emotional responses and behavior. Future research will provide a better understanding of this structure and its functions, which could lead to the development of new approaches to the treatment of neurological and psychiatric diseases.



The epithalamic commissure is one of the most important areas in the development of the brain and its formation. It is in the area where this structure is located that the development of all vital connections of the brain and nervous system begins. So what is the commissure, and why is it so important for brain development?

The commissure is an anatomical connection between the posterior and middle parts of the brain - the hemispheres. It is located inside the skull, its location is 11th in a row, and the area closest to us is localized in the region of the second ventricle. And it is the posterior cerebellum that is attached to the elevated occipital nerve, or also the cingulate gland, which is located next to the medulla oblongata. Thanks to this, a ligament is formed between the middle nerve structures and the gland.

This structure is presented in the form of a small white plate with a curved base. This disc contains