The spelling of "nervus thoracalis posterior" can be understood more clearly through the use of IPA phonetic transcription. The first part "ner-vus" is pronounced /ˈnɜːrvəs/ with the schwa sound in the first syllable. "Tho-rac-al-is" is pronounced /θəˈræksəlis/ and has three syllables with the stress on the second syllable. Finally, "posterior" is pronounced /pɒsˈtɪəriə/ with the stress on the third syllable. This word refers to the posterior thoracic nerve, which is important for innervating the muscles and skin of the back.
Nervus thoracalis posterior, also known as the posterior thoracic nerve, is a term used in human anatomy to describe a specific nerve that is found within the thoracic region of the body. It is a sensory nerve that originates from the spinal cord, more specifically from the dorsal roots of the spinal nerves located in the thoracic region.
This nerve runs posteriorly, or towards the back of the body, providing sensory innervation to a specific area of the thoracic region. The exact area covered by the nervus thoracalis posterior may vary among individuals, but in general, it supplies sensory information to the skin and muscles of the back region within the thoracic area.
The nervus thoracalis posterior is a branch of the intercostal nerves, which are responsible for providing sensation and innervation to the muscles and skin between the ribs. It may also contribute to the innervation of certain internal organs in the thoracic region, such as the lungs and heart.
Understanding the anatomical organization of the nervus thoracalis posterior is important in clinical settings, as injuries or abnormalities affecting this nerve can lead to sensory disturbances or pain in the back region of the thorax. Proper identification and preservation of this nerve during surgical procedures or diagnostic interventions are essential to prevent damage and ensure optimal patient outcomes.
Posterior thoracic nerve, a name applied to the dorsalis scapulae and thoracalis longus nerves collectively.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.