The spelling of the Latin term "nervus popliteus externus" is dictated by the International Phonetic Alphabet (IPA), which is used to transcribe sounds in any language. In this case, "nervus" is pronounced /ˈnɛrvʊs/, "popliteus" is pronounced /pɒpˈlaɪtiəs/, and "externus" is pronounced /ɛkˈstɜːrnəs/. This pronunciation guide provides an accurate way to spell and speak the term, which refers to a nerve in the knee joint. Medical professionals and keen observers of language can benefit from understanding the spelling of Latin anatomical terms using IPA.
Nervus popliteus externus is a Latin term used in anatomy to refer to the external popliteal nerve, which is a peripheral nerve located in the lower limb. It is also known as the common peroneal nerve or the fibular nerve.
The nervus popliteus externus arises from the sciatic nerve in the posterior thigh, just below the gluteal region. It then travels down the back of the leg, passing behind the knee joint and dividing into two branches – the superficial peroneal nerve and the deep peroneal nerve.
The superficial peroneal nerve courses along the lateral side of the leg, supplying sensory innervation to the skin on the anterolateral aspect of the lower leg and the dorsum of the foot. It also controls movements of the muscles involved in eversion of the foot.
The deep peroneal nerve runs along the anterior leg, providing sensory innervation to the skin between the first and second toes. It also controls the muscles involved in dorsiflexion of the foot and extension of the toes.
The nervus popliteus externus plays a crucial role in the innervation and control of various muscles and sensory functions of the lower limb. It is instrumental in allowing proper movement and stability of the leg, foot, and ankle, thereby enabling normal gait and locomotion. Dysfunction or damage to this nerve can result in a range of symptoms, including pain, weakness, numbness, or loss of muscle control in the affected areas.
External popliteal nerve, n. peronaeus communis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.