<b>Topographic anatomy of the spinal cord and vertebromedullary relationships in <em>Mazama gouazoubira</em> Fisher, 1814 (Artiodactyla; Cervidae)</b> - doi: 10.4025/actascibiolsci.v32i2.5061 <b>Topographic anatomy of the spinal cord and vertebromedullary relationships in <em>Mazama gouazoubira<em> Fisher, 1814 (Artiodactyla; Cervidae)</b> - doi: 10.4025/actascibiolsci.v32i2.5061
To gain an understanding of the detailed anatomical aspects of <em>Mazama gouazoubira</em> (brocket deer), this paper describes the relationships between its spinal cord and the vertebral canal, adding information with a clinical and surgical approach. Three specimens of M. <em> go...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
Universidade Estadual de Maringá
2010-05-01
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Series: | Acta Scientiarum : Biological Sciences |
Subjects: | |
Online Access: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5061 |
Summary: | To gain an understanding of the detailed anatomical aspects of <em>Mazama gouazoubira</em> (brocket deer), this paper describes the relationships between its spinal cord and the vertebral canal, adding information with a clinical and surgical approach. Three specimens of M. <em> gouazoubira </em>were prepared following the methods normally used in anatomy. The epaxial muscles and vertebral arches were removed to expose the spinal cord and the spinal nerve roots. The dimensions of the medullary segments were measured using a pachymeter with 0.05 mm precision. The spinal cord is cylindroidal, dorsoventrally flattened, with an average craniosacral length of 656.27 mm, and has two dilatations corresponding to the cervical and lumbar intumescences. The cervical, thoracic, lumbar and sacrocaudal segments showed an average length of 175.07, 226.03, 123.47 and 43.63 mm, with indices of 28.02, 35.34, 19.68 and 6.93%, respectively. The medullary cone, whose average length is 46.27 mm, begins between L2 and L3 and ends between S1 and S2, with a mean index of 7.53%. The overall average distance between the nerve roots of the cervical, thoracic and lumbosacral segments was 2.23, 2.06 and 1.98 cm, respectively.<br>To gain an understanding of the detailed anatomical aspects of <em>Mazama gouazoubira</em> (brocket deer), this paper describes the relationships between its spinal cord and the vertebral canal, adding information with a clinical and surgical approach. Three specimens of M. <em> gouazoubira </em>were prepared following the methods normally used in anatomy. The epaxial muscles and vertebral arches were removed to expose the spinal cord and the spinal nerve roots. The dimensions of the medullary segments were measured using a pachymeter with 0.05 mm precision. The spinal cord is cylindroidal, dorsoventrally flattened, with an average craniosacral length of 656.27 mm, and has two dilatations corresponding to the cervical and lumbar intumescences. The cervical, thoracic, lumbar and sacrocaudal segments showed an average length of 175.07, 226.03, 123.47 and 43.63 mm, with indices of 28.02, 35.34, 19.68 and 6.93%, respectively. The medullary cone, whose average length is 46.27 mm, begins between L2 and L3 and ends between S1 and S2, with a mean index of 7.53%. The overall average distance between the nerve roots of the cervical, thoracic and lumbosacral segments was 2.23, 2.06 and 1.98 cm, respectively. |
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ISSN: | 1679-9283 1807-863X |