Cross (Decussation)

The chiasm is a point in the central nervous system (CNS) where nerve fibers from different parts of the brain intersect. This area is important for communication between the two hemispheres of the brain.

The chiasm is important for the transfer of information between the hemispheres. For example, when we read text or look at a picture, information received by the left hemisphere can be transferred to the right, and vice versa. This way we can process information from both sides at the same time.

The chiasm also plays an important role in emotional processing and decision making. When we experience strong emotions such as fear or joy, our bodies send signals to the brain that can be transmitted through the chiasm. This helps us better understand and respond to our feelings.

However, if the chiasm is damaged or does not work properly, it can lead to various problems such as poor coordination, problems with memory and concentration. In some cases, decussation may be the cause of epilepsy or other neurological diseases.

The chiasm is therefore an important element of our nervous system and plays an important role in our health and well-being.

Cross (Decussation)

Crossroads - is the point of intersection of two or more body structures, such as nerve fibers in the central nervous system, as well as other tissues and organs. This term is used in medicine and physiology to describe the process by which nerve impulses from different parts of the body intersect at one point.

In the central nervous system, nerve fibers pass through junctions where they intersect or cross over each other. This occurs in the spinal cord and brain, as well as in other parts of the nervous system.

The intersections of nerve fibers are important for the functioning of the brain and nervous system as a whole. They allow information to be transferred between different parts of the body and ensure coordination of movements. In addition, nerve fiber junctions play an important role in information processing and decision making.

Physiology and medicine

The study of nerve fiber intersections is important in physiology and medicine. They can cause various diseases and disorders of the nervous system, such as paralysis, impaired coordination of movements and other problems.

Various techniques are used to study nerve junctions, including electrophysiological studies and computed tomography. This makes it possible to determine which nerve fibers intersect at one point or another, and how this affects the functioning of the nervous system.

Thus, the intersections of nerve fibers are an important element of the central nervous system and play a key role in its functioning. Studying these intersections can help in understanding various diseases and developing new treatments.

Cross - (lat. decussatio) - the line of intersection of channels, arteries, nerves in the thickness of any organ or on the surface; also the point of their intersection. According to ideas based on the functional characteristics of segmentation within the organization of tissues and organs, the intersections of channels and vessels in the central nervous system provide optimal conditions for circulatory relationships: the connection has the reverse order, i.e. formed from left-sided vessels of the right side and vice versa. There are main, intermediate and super-intermediate crosses, single and double, crossed and non-crossed “loops” of vessels, dual and triple lines of connection (branching and non-branching). In the embryonic state, both more stable variants of the relationship of paired organs and exclusively transient features are clearly visible. The phenomena of mismatch of moments, “lag” of some developmental processes due to adaptation disorders and abnormalities of the anlage can also be seen at other intersections: interventricular septum - brain and spinal cord, lymphatic capillaries - lymphatic veins of the papillary muscles of the eye, midbrain and heart, nerves - arteries at the place of their division; more rare cases have a special name: “intersection along the transverse abdomen”, “along the anterolateral surface”, etc. Even relatively well-developed intersections