Peripheral Nervous System

Peripheral Nervous System - includes all nerve formations located outside the central nervous system (i.e. outside the brain and spinal cord). The peripheral nervous system includes all cranial and spinal nerves with their roots, as well as their branches, nerve endings and ganglia. The Peripheral Nervous System plays an important role in transmitting information from receptors to the central nervous system and from the central nervous system to effectors (muscles and glands). Damage to the peripheral nervous system can lead to sensory and movement disturbances.

The peripheral nervous system (Peripheral Nervous System) is the collection of all nervous formations located outside the central nervous system. It includes cranial and spinal nerves, their roots, branches, endings and ganglia.

The peripheral nervous system plays an important role in regulating various body functions, such as motor activity, sensitivity, metabolism, etc. It provides communication between the central nervous system and various organs and tissues of the body.

Cranial nerves are part of the peripheral nervous system and are responsible for transmitting sensory information from the senses to the brain. The spinal nerves also perform this function, but are also involved in motor function by providing innervation to muscles and tendons.

In addition, the peripheral nervous system includes various ganglia - nerve ganglia that control the transmission of signals between nerve endings and other parts of the peripheral nervous system.

Thus, the peripheral nervous system is an important component of the body's nervous system and plays a key role in the regulation of many physiological processes.

The peripheral nervous system plays a critical role in the functioning of the body and ensuring its vital functions. It consists of all nerve formations located outside the central nervous system, i.e. beyond the brain and spinal levels.

The nervous periphery system includes all skeletal nerves, cranial nerves and spinal nerves with their branches, nerve endings and ganglia. This system is responsible for controlling muscles, transmitting sensory impulses and regulating internal organs and systems.

The nervous periphery system has a complex structure and is divided into several important sections:

1. Somatic innervation is a section of the peripheral nervous system responsible for controlling skeletal muscles. Skeletal muscles are under the control of motor neurons, which receive impulses from the cerebral and spinal levels of the nervous system. 2. Autonomic innervation is a department of the peripheral nervous system responsible for controlling the activity of internal organs. The autonomic nervous system controls the activity of the intestinal tract, genitourinary, respiratory systems, blood vessels, etc. 3. Sensitive innervation - this part of the nervous periphery system is responsible for transmitting sensory signals to the central nervous system. Sensory nerves transmit signals from the skin, muscles, and internal organs to the brain.

Complex relationships between the parts of the peripheral nervous and central nervous systems ensure their functional interaction. This allows the body to adapt to changes in the environment and maintain its homeostasis.

The nervous periphery is connected to the central nervous system through two main connections: sympathetic and parasympathetic. These connections regulate the functioning of various organs and systems of the body, control heart rate, breathing, metabolic processes and other functions.

The sympathetic nervous system increases the activity of autonomic networks, speeds up the activity of the heart and lungs, dilates blood vessels and reduces intestinal activity. The parasympathetic system slows the heart rate, stimulates the intestines, dilates the pupils and constricts blood vessels.

In addition, the peripheral nervous system is important in regulating muscle tone