Plexus Axillaris is a complex anatomical structure located in the axilla region of the human body. The correct spelling of this term uses the Latin language, which has different phonetic rules compared to contemporary English. The IPA transcription of "Plexus Axillaris" is ['plɛksəs æksɪ'lærɪs], where each symbol represents a specific sound. Note the soft "e" sound in "plexus" and the "a" in "axillaris" pronounced as "æ". Mastering the correct spelling of medical terms requires a solid understanding of IPA transcription and anatomy.
The term "plexus axillaris" refers to a complex network of nerves that originate from the roots of the brachial plexus and are primarily located within the axilla, commonly known as the armpit. It is an essential component of the peripheral nervous system, responsible for providing nerve supply to the upper extremity.
The plexus axillaris is formed by the union of the anterior rami from spinal nerves C5-C8 and the anterior division of the spinal nerve T1. This network of nerves gives rise to a series of branches that innervate various muscles, joints, and skin regions within the upper limb.
The primary branches derived from the plexus axillaris include the axillary nerve, which innervates the deltoid and teres minor muscles, and the radial nerve, a major nerve that supplies the extensor muscles of the arm and forearm. Other branches include the medial and lateral pectoral nerves, which provide sensation and motor innervation to certain pectoral muscles, and the thoracodorsal nerve, which innervates the latissimus dorsi muscle.
Injury or compression of the plexus axillaris can result in various neurological symptoms, such as pain, weakness, numbness, or tingling in the upper extremity. These conditions may occur as a result of trauma, compression, or certain medical conditions. Understanding the anatomy and function of the plexus axillaris is important for diagnosing and treating such conditions effectively.
Axillary p., a lymphatic plexus formed of the lymph nodes, with their afferent and efferent vessels, in the axilla.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word plexus axillaris is derived from Latin.
- Plexus is a Latin noun meaning a network or a braid. In anatomy, it refers to a network of nerves or vessels that are entwined or interwoven.
- Axillaris is a Latin adjective derived from the noun axilla, which means armpit. It is used to indicate that the plexus is located in the armpit region.
So, plexus axillaris translates to a network of nerves located in the armpit.