18 research outputs found

    MICROSURGICAL ANATOMY AND INJURIES OF THE ABDUCENS NERVE

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    The abducens nerve originates from a set of neural cells located in the ventral portion of the pons(1). This cellular nucleus emits axons that attend a ventral course and leaves the brainstem in the pontomedullary sulcus(2,3). The nerve has a previous anterior and superior trajectory, before it travel throught the dura-mater of the sellar region(2). It passes throught the petrous portion of the temporal bone entering in the cavernous sinus(4-8). The orbital curse begins in the common tendinous ring after it inervate the lateral rectus muscle(9). Its course through the skull base is shown in Figures 1, 2 and 3. The abducens is a somatomotor nerve whose function is contracting the lateral rectus muscle with consequent [GRAPHICS] eye abduction. it has a long passage from the brainsteM to the ocular globe(10-14). We didactically cover in this study based on its location and relations to the central nervous system (CNS), posterior fossa, cavernous sinus and orbit. Also, we discuss some relative aspects regarding such nerve injuries.6719610
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