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Multiple variations of the branches of the brachial plexus with bilateral connections between ulnar and radial nerves / Múltiples variaciones de los ramos del plexo braquial con conexiones bilaterales entre los nervios ulnar y radial
Ajayi, Nasirudeen Oladipupo; Lazarus, Lelika; Satyapal, Kapil Sewsaran.
  • Ajayi, Nasirudeen Oladipupo; University of KwaZulu-Natal Durban. Department of Clinical Anatomy. ZA
  • Lazarus, Lelika; University of KwaZulu-Natal Durban. Department of Clinical Anatomy. ZA
  • Satyapal, Kapil Sewsaran; University of KwaZulu-Natal Durban. Department of Clinical Anatomy. ZA
Int. j. morphol ; 30(2): 656-660, jun. 2012.
Article in English | LILACS | ID: lil-651846
ABSTRACT
During routine dissection of the upper limbs of a caucasian male cadaver, multiple variations of the branches of the brachial plexus were observed. On the left side, the musculocutaneous nerve was absent and the muscles of the anterior compartment of the arm were innervated by the median nerve. The median nerve was also formed from three roots viz; two from the lateral and one from the medial cord of the brachial plexus. On the right side, the musculocutaneous nerve contributed a long communicating branch to the median nerve in the distal half of the arm. There were also communicating branches between the ulnar and radial nerves in both limbs at the humeral level. The co-existence of these variations appears to be unique and has not been reported in the literature reviewed. The anatomic and clinical significance of these variations is discussed.
RESUMEN
Fueron observadas durante una disección de rutina de los miembros superiores de un cadáver caucásico masculino, múltiples variaciones de los ramos del plexo braquial. En el lado izquierdo, el nervio musculocutáneo estaba ausente y los músculos del compartimento anterior del brazo estaban inervados por el nervio mediano. El nervio mediano se encontraba formado de tres raíces dos provenientes del fascículo lateral y uno del fascículo medial del plexo braquial. En el lado derecho, en la mitad distal del brazo, el nervio musculocutáneo generó un largo ramo comunicante con el nervio mediano. Además, en el brazo, en ambos miembros superiores existían ramos comunicantes entre los nervios ulnar y radial. La coexistencia de estas variaciones aparece ser única y no ha sido relatada en la literatura consultada. Son discutidas la significancia anatómica y clínica de estas variaciones.
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Full text: Available Index: LILACS (Americas) Main subject: Brachial Plexus / Upper Extremity Limits: Humans / Male Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2012 Type: Article Affiliation country: South Africa Institution/Affiliation country: University of KwaZulu-Natal Durban/ZA

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Full text: Available Index: LILACS (Americas) Main subject: Brachial Plexus / Upper Extremity Limits: Humans / Male Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2012 Type: Article Affiliation country: South Africa Institution/Affiliation country: University of KwaZulu-Natal Durban/ZA