Choroid Plexus

In the lateral ventricles of the brain there are plexuses of blood vessels called choroid plexuses. They are clusters of cells and vessels that produce cerebrospinal fluid and are involved in the regulation of intracranial pressure. The choroid plexuses are important for the normal functioning of the brain, as they are involved in the exchange of substances between blood and cerebrospinal fluid, and also contribute to the regulation of pressure in the brain.

The choroid plexus consists of two types of vessels: arterioles and capillaries. Arterioles are thin vessels that supply blood to the plexus. Capillaries ensure the exchange of substances between blood and plexus cells.

One of the main components of the choroid plexus is the epithelium, which covers the surface of the capillaries and processes of the plexus. Epithelial cells produce cerebrospinal fluid, which is the main component of intracranial fluid. Cerebrospinal fluid consists of water, electrolytes and proteins, which help maintain normal pressure in the brain and regulate metabolism in brain tissue.

In addition, the choroid plexus is involved in the regulation of brain homeostasis. They are involved in removing excess glucose from the blood and maintaining normal blood glucose levels. Also, the choroid plexus plays an important role in maintaining constant osmotic pressure in the brain, which ensures the normal functioning of nerve cells.

Plexus of vascular fibers are also involved in the formation of cerebrospinal fluid, necessary for the normal functioning of the nervous system. They ensure metabolism and removal of excess fluid from the brain, which helps maintain optimal pressure inside the skull.

Overall, the choroid plexus is an important component of the nervous system and plays a key role in maintaining brain homeostasis. Studying their functions can help in understanding various diseases of the nervous system, such as hydrocephalus and intracranial hypertension, as well as in developing new treatments for these diseases.

The choroid plexus is a structure located in the lateral, third and fourth ventricles of the brain, which provides nutrition and protection to the brain. They consist of loose connective tissues that form many processes. Each process contains arterioles and their capillary networks, covered with epithelium on the side of the ventricles. Capillaries meander to form numerous villi that help distribute nutrients and fluids throughout the brain.

The choroid plexuses play an important role in maintaining brain homeostasis and regulating cerebrospinal fluid pressure. They are also involved in the production of cerebrospinal fluid and other fluids necessary for normal brain function.

However, in some diseases, such as hydrocephalus or tumors, the choroid plexus may be damaged or disrupted. This can lead to increased cerebrospinal fluid pressure, which can cause headache, nausea, vomiting and other symptoms.

Thus, the choroid plexuses are important structures in the human body that play a key role in maintaining brain health and regulating cerebrospinal fluid pressure. However, they may be susceptible to disease, which requires careful monitoring and treatment.

Vascular plexuses (Cortex choroid, choroid plexus, choroid) are collections of capillaries, as well as loose cellular formations that extend along the lateral surfaces of the third and fourth ventricles of the brain in birds and mammals (with the exception of humans, rhesus monkeys and rats). The plexus is usually present in vertebrates that produce cerebrospinal fluid: fish, reptiles, birds and mammals, and in reptiles it usually increases in size. The water drainage channels of some species of fish and reptiles are connected to the plexus. Embryos of amphibians and most vertebrates begin as larvae without choroid plexuses, but they are formed by the growth of neuroepithelial cells. Choroid plexuses are present in all parts of the brain, with the exception of the hemispheres. They have three main sources: the primary choroid plexus is produced by the protrusion of endothelial cells of the arborial vessels lying along the basal plate of the roof of the forebrain during their castration during development; The secondary plexus is formed from the small medullary fascicle, which grows through the lateral wall of the ventricles. Both plexuses are found at the level of the posterior cerebral sinus almost immediately after the initial manifestations at the embryonic stage. While the primary choroid plexus does not contain neurons, the secondary ones, on the contrary, contain a small number of cells called pineal cells, which secrete cerebrospinal fluid and are controlled by the tetanic retinal nucleus. Relaxation of neurons resulting from the generation of interneurons may stimulate these cells to produce more CSF than under normal conditions. The choroid plexus is thus found at all levels of the brain. The degree of castration of the choroid plexuses may vary according to the types and sites of their implantation. But the choroid plexuses of most animals are poorer, have unequal distribution and different numbers than those of reptiles.

Many mammals have the so-called Lefort syndrome, which is accompanied by hydrocephalus and the appearance of hydrocephalus of the cerebral cisterns and atrophy of the cortex of both hemispheres of the brain. It is caused by a low number of primary choroid plexus.

People have a disorder called pigmented scleroma (also known as hydrocele) of the brain due to calcification of the choroid plexus. This can lead to hydrocephalus. Additionally, removal of the primary choroid plexus occurs in the Liver dog, which has a huge cerebrospinal fluid sac in its brain. Most vertebrates have a choroid plexus instead of the lymphatic mantle connection, which often replaces them. Laboratory mice especially have many vascular connections. For example, they are the main site of cerebrospinal fluid production in mice, and cerebrospinal fluid is used in the laboratory to analyze relikin. There are two vascular connections for the mouse pelvic ears: in the south medial genu and near the equatorial genu. Studies conducted on experimental animals show the likelihood of patients developing hydrocephalus