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A rare muscle anomaly: The Supraclavicularis Proprius Muscle

Monday, July 20th, 2009

The supraclavicularis proprius muscle is an abnormal muscle that may be found in the supraclavicularisfossaDuring routine dissection of 78 cadavers (corresponding to 156 supraclavicular fossae), 10% formalin fixed, we found it in one adult Caucasian male cadaver. In our experience, the frequency of occurrence of the supraclavicularis proprius muscle would be 0.64%This abnormal muscle consists of an anterior tendon inserting into the sternal aspect of the clavicle, lateral to the clavicular insertion of thesternocleidomastoideus muscle, and a posterior muscular portion entering the lateral aspect of the clavicle, medial to the acromioclavicular joint.
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CODE:3Hgce00001
Authors:
Nicolás Ernesto Ottone/ status:Student assistant
email: nicolasottone@gmail.com
Advisor: Dr.Carlos Medan
Institution: School of Medicine, University of Buenos Aires. Buenos Aires, Argentina.
Language: English
year: 2009

Paper published by Folia Morphologica
(2009, Vol. 68, No. 1, pp. 55-57)
[Received 17 September 2008; Accepted 15 November 2008]
Presented at 45th Argentinian Congress of Anatomy Mendoza 2008

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Related links:

  1. A Supraclavicularis Proprius (Gruber) P. P. Laidlaw
  2. Illustrated Encyclopedia of Human Anatomic Variation: Trapezius

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