Nerves Supraclavicular Posterior

The posterior supraclavicular nerves are a pair of large nerves that are located in the back of the neck and supply the muscles and skin of the upper extremity. They are an extension of the brachial plexus and are one of the largest nerves in the human body.

The supraclavicular posterior nerves begin in the lateral part of the brachial plexus, pass through the subclavian muscle and exit to the surface of the neck, where they divide into two branches: lateral and medial. The lateral branch passes through the anterior part of the deltoid muscle, and the medial branch passes through the posterior part of the deltoid and supraspinatus muscles.

The main function of the supraclavicular posterior nerves is to innervate the muscles of the upper limb and the skin of the supraclavicular region. They are also involved in regulating blood and lymph flow in this area.

Pathology of the supraclavicular posterior nerves can present with various symptoms such as numbness, tingling, weakness and muscle atrophy in the upper extremity. There may also be a violation of the sensitivity of the skin of the supraclavicular zone.

To diagnose the pathology of the supraclavicular posterior nerves, various research methods are used, such as electromyography, magnetic resonance imaging and others. Treatment may include medication, physical therapy, surgery, or a combination of these methods.

Overall, the supraclavicular posterior nerves play an important role in upper limb function and maintenance. However, their pathology can lead to serious consequences, so it is important to monitor their condition and, if necessary, consult a doctor.

Posterior supraclavicular nerves: Anatomy and functions

The posterior supraclavicular nerves are an important part of the human nervous system. They belong to the peripheral nerves and play an important role in the innervation of the upper limb. In this article, we review the anatomy and function of the posterior supraclavicular nerves and their clinical significance.

Anatomy:
The posterior supraclavicular nerves originate from the brachial plexus, which is formed by the connection of the nerves of the cervical spinal column (upper cervical spinal nerves) and the nerve of the subscapularis muscle. They pass along the back of the collarbone and continue to the back of the shoulder. In this area they innervate the skin, muscles and joints.

Functions:
The posterior supraclavicular nerves provide motor and sensory innervation to various structures of the upper limb. They innervate the posterior muscles of the shoulder, such as the triceps brachii, the deltoid and the lateral head of the biceps brachii. These muscles play an important role in movement and stabilization of the shoulder joint.

In addition, the posterior supraclavicular nerves provide sensory innervation to the posterior aspect of the upper arm, the skin on the lateral aspect of the upper arm, and the posterior aspect of the forearm. They transmit signals about tactile sensations, pain and temperature from these areas to the brain.

Clinical significance:
Damage to the posterior supraclavicular nerves can cause a variety of symptoms and functional impairment. For example, compression or damage to these nerves can lead to weakness in the shoulder muscles, numbness or tingling sensations in the back of the shoulder and forearm, and decreased sensation in these areas.

One of the most common causes of injury to the posterior supraclavicular nerves is trauma, such as a fractured collarbone or damage to surrounding tissue from an accident or fall. Other possible causes include inflammation, tumors, or nerve compression due to abnormal anatomy.

Treatment of injuries to the posterior supraclavicular nerves depends on their nature and severity. In some cases, conservative treatment may be required, including physical therapy and rehabilitation. In more severe cases, surgery may be required to restore nerve function or relieve compression.

In conclusion, the posterior supraclavicular nerves play an important role in the innervation and function of the upper limb. Their damage can lead to various symptoms and dysfunction of the shoulder and forearm. Understanding the anatomy and function of these nerves has important clinical implications for the diagnosis and treatment of related conditions.