Do you know what the function of the peripheral nervous system is, what are the parts of the peripheral nervous system or why the central nervous system and the peripheral nervous system should work in coordination?
The peripheral nervous system is made up of a large number of nerves and is responsible for functions as diverse as breathing, voluntary movements or responses in dangerous situations. In addition, without the existence of this system, the brain could not receive information, preventing decision-making that favors survival. If you want to know more about this system, keep reading our online Psychology article: Peripheral nervous system: functions and parts.
The nervous system is the set of nerves and specialized cells, neurons, which is responsible for controlling all functions of the body, as well as relating and coordinating the actions of different organs and parts of the body.
Its activity is carried out through the emission and reception of electrical signals or nerve impulses. From the anatomical point of view, the nervous system is divided into the central and peripheral nervous systems. The central nervous system is composed of the brain and spinal cord.
The peripheral nervous system (SNP) is the part of the nervous system that is made up of nerves and neurons that are outside the brain and spinal cord. This neural network of the SNP connects the brain and spinal cord with the rest of the body, allowing the exchange of information.
The peripheral nervous system is divided into the somatic and autonomous nervous system.
What are the functions of the peripheral nervous system? Next, we explain the main functions of the peripheral nervous system:
The main parts of the peripheral nervous system include the cranial nerves, spinal nerves, and nerve ganglia. How is the peripheral nervous system formed? The peripheral nervous system is made up of nerve ganglia and 43 pairs of nerves; 12 pairs of cranial nerves and 31 spinal pairs.
The cranial nerves are part of the peripheral nervous system. The 12 pairs of cranial nerves are located in part of the head and neck. Its functions are sensitive, motor or mixed:
Spinal nerves arise from the spinal cord and drive stimuli from the rest of the body. These nerves have both a sensitive and motor part. The 31 pairs of spinal nerves and distribute as follows:
The nodes are a group of neuronal bodies that are part of the peripheral nervous system. They are interspersed in the path of the nerves and are divided into sensory or autonomous ganglia, in relation to the function they play.
The peripheral nervous system is not protected by bone structures, which makes it relatively vulnerable to a number of diseases. Conditions can be acquired or from birth. What are the most common diseases of the peripheral nervous system? The most common pathologies of this system are neuropathies, they refer to the damage or disease of one or several nerves.
There are several types of this disease, due to the number of nerves that form the SNP. Symptoms can develop rapidly or slowly, and develop in years. Symptomatology usually occurs on both sides of the body and begins with the fingers of the extremities. Neuropathy usually manifests itself through numbness, pain, burning, tingling, weakness, numbness, etc. Some of the most common types of neuropathies are the following:
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