Perineurium

Perineurium is a sheath of connective tissue covering individual bundles (fascia) of nerve fibers that pass inside a peripheral nerve.

The perineurium consists of several layers of flat cells that surround individual bundles of nerve fibers passing within the peripheral nerve. These cell layers form a diffusion barrier that insulates and protects nerve fibers from external influences.

The main functions of the perineurium:

1. Mechanical protection of nerve fibers from compression and stretching.

2. Regulation of metabolism between nerve fibers and surrounding tissues. The perineurium prevents the free diffusion of various substances from the blood vessels into the nerve and vice versa.

3. Maintaining the stability of the internal environment of nerve fibers by creating a blood-neural barrier.

Thus, the perineurium performs an important protective function, providing optimal conditions for the conduction of nerve impulses along the fibers of the peripheral nerve. Damage to the perineurium disrupts the integrity of the nerve pathways and can lead to the development of neuropathies.

Perineurium is a connective tissue sheath that covers individual bundles of nerve fibers passing inside a peripheral nerve. This sheath is one of the main components of the peripheral nervous system and plays an important role in protecting and maintaining nerve fibers.

The perineurium consists of collagen fibers and endoneurial cells, which form several layers around each bundle of nerve fibers. Each layer of the perineurium consists of bundles of collagen fibers that surround the nerve fibers and provide them with protection from damage and injury.

One of the main functions of the perineurium is to prevent the displacement of nerve fibers within the peripheral nerve. This is especially important in cases of trauma or severe stretching of the nerve, where the perineurium can protect the nerve fibers from stretching and prevent damage.

The perineurium also plays an important role in maintaining blood supply to nerve fibers. It contains many capillaries that provide the nerve fibers with oxygen and nutrients. This helps keep the nerves healthy and ensures their normal functioning.

In addition, the perineurium is an important component of the blood-nerve barrier, which prevents the penetration of harmful substances from the blood into the nervous system. This is especially important in cases of poisoning or infection, when the perineurium protects the nerves from exposure to toxic substances.

In conclusion, the perineurium is an important component of the peripheral nervous system that plays a role in protecting and maintaining nerve fibers. Its functions include preventing the displacement of nerve fibers, maintaining blood supply to the nerves, and protecting against harmful substances. Thanks to these functions, the perineurium ensures the normal functioning of the peripheral nervous system and helps maintain healthy nerves.

Perineurium is a sheath that covers individual sections of nerve fibers and provides their protection. It is an integral part of the peripheral nervous system of our body and plays an important role in its functioning. What is the perineurium and how does it protect nervous tissue?

Perineurium

Perineurium (or perineuria) is the connective tissue membrane that covers the bundles of nerves located in the peripheral nervous system. In this article we will look at the properties, functions and anatomical significance of the perineurium.

Functional properties of the perineurium Perineurial membranes can absorb moisture and reduce pressure fluctuations in the nerves. Perineuria have a unique ability to normalize the transmission of excitation impulses to the nerves and even perform the function of “internal hydrobarriers” in microcirculatory processes associated with the distribution of internal environmental factors. This helps create a more uniform flow of substances from the capillaries into the nervous tissue and remove waste products from the nerve tissues and neurocytes - thus, the perineural membranes contribute to the development of normal life