Artigo

Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study

Purpose: To describe the anatomical aspects of the cervical rootlets and to quantify the number of rootlets that compose C1 to T1. Methods: Twenty male rats were used in this study. The dorsal rootlets from C1 to T1 were analyzed. To study the ventral rootlets, the posterior root avulsion was pe...

ver descrição completa

Autor principal: ARAÚJO, Nayara Pontes de
Grau: Artigo
Publicado em: 2023
Assuntos:
Spinal cord
Nervous system
Spinal nerve roots
Cervical cord
Rats
CNPQ::CIENCIAS DA SAUDE:: MEDICINA
Acesso em linha: https://bdm.ufpa.br:8443/jspui/handle/prefix/6128
id oai:https:--bdm.ufpa.br:8443:prefix-6128
recordtype dspace
spelling oai:https:--bdm.ufpa.br:8443:prefix-61282023-09-22T03:06:33Z Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study ARAÚJO, Nayara Pontes de YASOJIMA, Edson Yuzur http://lattes.cnpq.br/6901845081643218 https://orcid.org/0000-0002-1377-4895 Spinal cord Nervous system Spinal nerve roots Cervical cord Rats CNPQ::CIENCIAS DA SAUDE:: MEDICINA Purpose: To describe the anatomical aspects of the cervical rootlets and to quantify the number of rootlets that compose C1 to T1. Methods: Twenty male rats were used in this study. The dorsal rootlets from C1 to T1 were analyzed. To study the ventral rootlets, the posterior root avulsion was performed using a microhook, allowing exposure of the ventral roots through manipulation of the denticulate ligament and arachnoid mater. The parameters analyzed were the number of ventral and dorsal rootlets by side and level. Results: The formation of the respective spinal nerve was observed in the spinal roots the union of the ventral and dorsal roots. In four animals the C1 spinal root had no dorsal and/or ventral contribution. There is no normal pattern of numerical normality of the dorsal and ventral rootlets. The average number of fascicles per root was 4.08, with a slight superiority on the left side. There was a slight superiority of the dorsal rootlets compared to the ventral rootlets. Conclusions: This investigation was the first to study cervical rootlets in rats. In 20% of the sample studied, the dorsal root of C1 was absent mainly on the left side. There is a nonlinear numerical increase from C1 to T1 in the rootlets. There is a numerical predominance of cervical fascicles on the left side, confronting several studies related to the functional predominance of right laterality, requiring new studies that correlate these variables. 2023-09-18T14:42:05Z 2023-09-18T14:42:05Z 2022 Trabalho de Conclusão de Curso - Graduação - Artigo ARAÚJO, Nayara Pontes de. Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study. Orientador: Edson Yuzur Yasojima. 2022. 9 f. Trabalho de Conclusão de Curso (Bacharelado em Medicina) - Faculdade de Medicina, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, 2022. Disponível em: https://bdm.ufpa.br:8443/jspui/handle/prefix/6128. Acesso em:. https://bdm.ufpa.br:8443/jspui/handle/prefix/6128 Acesso Aberto Disponível na Internet via correio eletrônico: bibsaude@ufpa.br
institution Biblioteca Digital de Monografias - UFPA
collection MonografiaUFPA
topic Spinal cord
Nervous system
Spinal nerve roots
Cervical cord
Rats
CNPQ::CIENCIAS DA SAUDE:: MEDICINA
spellingShingle Spinal cord
Nervous system
Spinal nerve roots
Cervical cord
Rats
CNPQ::CIENCIAS DA SAUDE:: MEDICINA
ARAÚJO, Nayara Pontes de
Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study
topic_facet Spinal cord
Nervous system
Spinal nerve roots
Cervical cord
Rats
CNPQ::CIENCIAS DA SAUDE:: MEDICINA
description Purpose: To describe the anatomical aspects of the cervical rootlets and to quantify the number of rootlets that compose C1 to T1. Methods: Twenty male rats were used in this study. The dorsal rootlets from C1 to T1 were analyzed. To study the ventral rootlets, the posterior root avulsion was performed using a microhook, allowing exposure of the ventral roots through manipulation of the denticulate ligament and arachnoid mater. The parameters analyzed were the number of ventral and dorsal rootlets by side and level. Results: The formation of the respective spinal nerve was observed in the spinal roots the union of the ventral and dorsal roots. In four animals the C1 spinal root had no dorsal and/or ventral contribution. There is no normal pattern of numerical normality of the dorsal and ventral rootlets. The average number of fascicles per root was 4.08, with a slight superiority on the left side. There was a slight superiority of the dorsal rootlets compared to the ventral rootlets. Conclusions: This investigation was the first to study cervical rootlets in rats. In 20% of the sample studied, the dorsal root of C1 was absent mainly on the left side. There is a nonlinear numerical increase from C1 to T1 in the rootlets. There is a numerical predominance of cervical fascicles on the left side, confronting several studies related to the functional predominance of right laterality, requiring new studies that correlate these variables.
author_additional YASOJIMA, Edson Yuzur
author_additionalStr YASOJIMA, Edson Yuzur
format Artigo
author ARAÚJO, Nayara Pontes de
title Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study
title_short Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study
title_full Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study
title_fullStr Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study
title_full_unstemmed Anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study
title_sort anatomical description of the ventral and dorsal cervical rootlets in rats: a microsurgical study
publishDate 2023
url https://bdm.ufpa.br:8443/jspui/handle/prefix/6128
_version_ 1787238487513104384
score 11.755432

Registros relacionados