In other animals
The acromion process of bats (Mammalia: Chiroptera) is particularly elongated compared to that of  humans. Turtles have an acromion that forms the anterior part of the triradiate pectoral girdle (together with the coracoid and scapula). In this highly specialized endoskeletal structure, the scapula is a dorsal (directed upwards) process attached to the first rib; the coracoid is a posteroventral (directed backward and down) process; and the acromion is a medioventral (directed inwards and down) process (also known as the prescapular process) located at the base of the scapula. This had led to some controversy regarding the evolutionary origin of turtles, because in both pareiasaurs and non-mammalian therapsids the acromion is located at the dorsal tip of the scapula. In modern turtles, the acromion projects ventrally and articulates with the plastron (the flat lower part of the shell), but it evolved in a common ancestor of pareiasaurs and turtles long before the plastron. In these primitive ancestors, the acromion projected forward to form a strong and flexible articulation between the shoulder girdle and the clavicle. Notwithstanding these changes, the acromion of turtles retains its original function, to support the shoulder girdle and increase stride length. Additional images
Notes
 This article incorporates text in the public domain from page 203 of the 20th edition of Grays Anatomy (1918)

Habermeyer, Peter; Magosch, Petra; Lichtenberg, Sven (2006). Classifications and Scores of the Shoulder. Heidelberg: Springer. ISBN 978-3-540-24350-2. Lee, Michael S. Y. (January 22, 1996). "The Homologies and Early Evolution of the Shoulder Girdle in Turtles". Proc. R. Soc. Lond.
Living with Keshan disease
An individual will most likely be prescribed selenium supplements (in the form of selenomethionine) or have injections of this mineral. Other recommendations for managing Keshan disease are to increase consumption of foods rich in selenium in addition to supplements, avoid alcohol, monitor side effects to medications, and increase sleep. Cardiac surgery (implants, stents or full heart transplant) may be advised. See also
Selenium deficiency
Kashin–Beck disease

References


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