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Somatic nervous system

Nervous system of the human body is a very complex system, which is made of the network of neurons, which are cells specialized for coordinating actions and for transmitting signals between various parts of the body. Besides the brain and spinal cord, there are approximately ten billion neurons and even more interneural connections. This system is comprised of central and peripheral nervous system. While parts of the central are brain and spinal cord, the peripheral is made of sensory neurons, ganglia (clusters of neurons) and nerves that serve as the connection between themselves and between them and the central nervous system. In other words, peripheral nervous system consists of autonomic nervous system and Somatic nervous system.

Main characteristics of Somatic nervous system

As a part of peripheral nervous system, Somatic nervous system consists of sensory neurons and motor neurons. Since sensory nerves transmit the impulses form the sense organs to the central nervous system, and motor nerves transmit these impulses from the central nervous system to the skeletal muscle effectors, it means that in general, Somatic nervous system is responsible for a proper functioning of the voluntary activities of our body and for a proper functioning of our senses. Thanks to Somatic nervous system, we are able to see, feel the smell, taste and touch, as well as to hear sounds. Having in mind the roles and complexity of this part of the nervous system, which is only one part of it, it is obvious how important it is to keep it as healthy as possible.

Disorders that may affect Somatic nervous system

When it comes to disorders related to the Somatic nervous system, the fact is that they are numerous. Besides neuropathy, which is a functional disorder that involves one or more nerves in any region of the peripheral nervous system, there are also:

  • Neuritis, which is the inflammation of cranial nerve,
  • Diabetic neuropathy, which is a cranial or peripheral nerve disorder that is a result of diabetes,
  • Myasthenia gravis, which is related to the neuromuscular junction,
  • Trigeminal neuralgia, which is usually related to the fifth cranial nerve, also called trigeminal nerve,
  • Cranial nerve neoplasm, which is a disorder characterized by either cancerous or benign growths that appear somewhere in the tissues of the cranial nerve,
  • Brachial plexus neuropathy, which is a disorder related to the brachial plexus, in which there are spinal nerves that the communication with the arm, hand and forearm depends on.

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