Extensor digitorum brevis manus with "X" tendons.
نویسندگان
چکیده
During the educational dissection of a 72-year-old Chinese male cadaver, bilateral extensor digitorum brevis manus (EDBM) muscles were observed. The left EDBM muscle originated from the joint capsule ligament, running across the second dorsal interosseous muscle as double tendons (EDBM ulnar tendon and EDBM radial tendon) on the ulnar side of extensor digitorum communis (EDC)-index finger. The EDBM radial tendon positioned ventrally but inserted further to the ulnar tendon so that they made an "X" shape. The right EDBM muscle arose from dorsal radiocarpal ligament, coursing the second dorsal interosseous muscle and inserted into the ulnar side of EDC-index finger.
منابع مشابه
First Case Report of Extensor Digitorum Brevis Manus (Edbm) in Iran and Literature Review
During the dissection of a fifty-years old male cadaver with normally fined, we observed a rare variation in the dorsum of its hands in both sides. This variation was abnormal extensor digitorum brevis manus muscle (EDBM), which originated from the dorsum of wrist and inserted to the u]nar side of the index tendon of extensor digitorum muscle. In this case, extensor indicis muscle was absent. I...
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متن کاملA Cadaveric Study of Incidence, Morphology, Phylogeny and Classification of Extensor Digitorum
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متن کاملVariant extensor muscles on the dorsum of the hand
Usually the dorsal surface of the hand is devoid of muscle bellies, it only contains the tendons of the extensor muscles of the hand. Between the dorsal carpal ligament and the carpal bones six compartments are formed for the passage of tendons. Found on the dorsum of the hand are the tendons of the extensor pollicis longus, extensor digitorum communis, extensor indicis (extensor indicis propri...
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Background: Awareness of the anatomy and variations of the extensor tendons on the dorsum of the hand is necessary when assessing the traumatized or diseased hand and when considering tendons for repair or transfer. A complete quantitative documentation of the extensor tendons is lacking. Method: The arrangements of extensor tendons to the medical four fingers namely, the extensor digitorum com...
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ورودعنوان ژورنال:
- Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
دوره 55 2 Suppl شماره
صفحات -
تاریخ انتشار 2014