Where is angle of louis

Your email address will not be published. This site uses Akismet to reduce spam. Learn how your comment data is processed. November 5, 10 Places where you can study Effectively: Students Guide. September 30, Covid Reflections of an Anaesthesiologist. The manubriosternal joint , sometimes referred to as the sternomanubrial joint , is the articulation between the upper two parts of the sternum , the manubrium and sternal body.

It is at the level of the sternal angle or angle of Louis, which is at the 2nd costal cartilage and the intervertebral disc of T4 and T5 1. This forms an important palpable landmark for clinical examination. The manubriosternal joint is a type of secondary cartilaginous joint or symphysis , formed by the inferior border of the manubrium and the superior border of the sternal body.

Both sides of the joint are irregular and undulating and covered with hyaline cartilage 2. However, it is not a typical secondary cartilaginous joint as the bones may ossify later in adult life 3. The joint does not have a capsule or attached by any ligaments. There is very little movement of the manubriosternal joint but there may be a small amount of angular movement during respiration 4.

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Topics A-Z. All topics. To top. About bionity. Your browser is not current. Microsoft Internet Explorer 6. Sign in with Facebook. Sign in with Apple. Description The sternal angle angle of Louis is the anterior angle formed by the junction of the manubrium and the body of the sternum which varies around degrees in males. The sternal angle is a palpable clinical landmark under the skin that marks a number of other features: Boundary between the superior and inferior portion of the mediastinum Passage of the thoracic duct from right to left behind esophagus Aortic Arch Tracheal Bifurcation End of the azygos system into SVC Ligamentum arteriosum Loop of left recurrent laryngeal nerve around aortic arch Aortic arch starts and ends This definition incorporates text from a public domain edition of Gray's Anatomy 20th U.

Eponym Louis; Ludwig Images. Subscribe now Discover our subscription plans Subscribe. Manage cookies Accept.

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