Classification of the Musculocutaneous Nerve Fetuses

SUMMARY: The musculocutaneous nerve is a terminating branch of lateral cord of the brachial plexus and is formed from spinal roots of C5, C6 and C7. The anatomical variations of the musculocutaneous nerve (MCN) are not common, literary reports have described the different course of the MCN in the ar...

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Autores principales:	Kupsamy,K, Ishwarkumar,S, De-Gama,B. Z, Pillay,P
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2021
Materias:	Musculocutaneous nerve Fetal study Classification Variations
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000200653
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spelling	oai:scielo:S0717-950220210002006532021-04-22Classification of the Musculocutaneous Nerve FetusesKupsamy,KIshwarkumar,SDe-Gama,B. ZPillay,P Musculocutaneous nerve Fetal study Classification Variations SUMMARY: The musculocutaneous nerve is a terminating branch of lateral cord of the brachial plexus and is formed from spinal roots of C5, C6 and C7. The anatomical variations of the musculocutaneous nerve (MCN) are not common, literary reports have described the different course of the MCN in the arm, however very few fetal studies have been conducted on the variations of the MCN. Therefore, the aim of this study was to describe the course of the MCN in fetuses and document variations, if any. In this study, a sample size of twenty-five fetuses were bilaterally dissected (n=50) using a stereomicroscope. The anatomy of the MCN was described using a classification system generated based on the findings of this study. Ethical clearance was obtained from Biomedical Research Ethics Committte (BE385/17). Type I (normal anatomy) of the MCN was found in 42/50 (84 %) of specimens in this study. This study found a few variations, viz. 1/50 (2 %) case of Type II (absent), 1/50 (2 %) Type III (communication between the MCN and MN, from the MN to the MCN), 4/50 (8 %) cases of Type IV (communication from the MCN to the MN) and 2/50 (4 %) cases of Type V (communication from the MCN to the MN, where the MCN does not pierce the coracobrachialis muscle). Therefore, this study provides evidence of variations of the MCN in fetuses that may help surgeons in the interpretation of abnormal innervation patterns in the arm.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.39 n.2 20212021-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000200653en10.4067/S0717-95022021000200653
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Musculocutaneous nerve Fetal study Classification Variations
spellingShingle	Musculocutaneous nerve Fetal study Classification Variations Kupsamy,K Ishwarkumar,S De-Gama,B. Z Pillay,P Classification of the Musculocutaneous Nerve Fetuses
description	SUMMARY: The musculocutaneous nerve is a terminating branch of lateral cord of the brachial plexus and is formed from spinal roots of C5, C6 and C7. The anatomical variations of the musculocutaneous nerve (MCN) are not common, literary reports have described the different course of the MCN in the arm, however very few fetal studies have been conducted on the variations of the MCN. Therefore, the aim of this study was to describe the course of the MCN in fetuses and document variations, if any. In this study, a sample size of twenty-five fetuses were bilaterally dissected (n=50) using a stereomicroscope. The anatomy of the MCN was described using a classification system generated based on the findings of this study. Ethical clearance was obtained from Biomedical Research Ethics Committte (BE385/17). Type I (normal anatomy) of the MCN was found in 42/50 (84 %) of specimens in this study. This study found a few variations, viz. 1/50 (2 %) case of Type II (absent), 1/50 (2 %) Type III (communication between the MCN and MN, from the MN to the MCN), 4/50 (8 %) cases of Type IV (communication from the MCN to the MN) and 2/50 (4 %) cases of Type V (communication from the MCN to the MN, where the MCN does not pierce the coracobrachialis muscle). Therefore, this study provides evidence of variations of the MCN in fetuses that may help surgeons in the interpretation of abnormal innervation patterns in the arm.
author	Kupsamy,K Ishwarkumar,S De-Gama,B. Z Pillay,P
author_facet	Kupsamy,K Ishwarkumar,S De-Gama,B. Z Pillay,P
author_sort	Kupsamy,K
title	Classification of the Musculocutaneous Nerve Fetuses
title_short	Classification of the Musculocutaneous Nerve Fetuses
title_full	Classification of the Musculocutaneous Nerve Fetuses
title_fullStr	Classification of the Musculocutaneous Nerve Fetuses
title_full_unstemmed	Classification of the Musculocutaneous Nerve Fetuses
title_sort	classification of the musculocutaneous nerve fetuses
publisher	Sociedad Chilena de Anatomía
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022021000200653
work_keys_str_mv	AT kupsamyk classificationofthemusculocutaneousnervefetuses AT ishwarkumars classificationofthemusculocutaneousnervefetuses AT degamabz classificationofthemusculocutaneousnervefetuses AT pillayp classificationofthemusculocutaneousnervefetuses
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Classification of the Musculocutaneous Nerve Fetuses

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