The Great Auricular Nerve in Fetuses

The great auricular nerve (GAN) is the largest branch of the superficial cervical plexus that winds around the posterior border of the sternocleidomastoid muscle, accompanied by the external jugular vein. Forty fetuses (right side: 40/80; left: 40/80) with gestational ages between 15 to 28 weeks wer...

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Autores principales:	Pillay,Pathmavathie, Partab,Prawesh, Lazarus,Lelika, Satyapal,Kapil S
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2012
Materias:	Great auricular nerve Fetuses Branching pattern Anatomical variation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100006
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spelling	oai:scielo:S0717-950220120001000062012-06-08The Great Auricular Nerve in FetusesPillay,PathmavathiePartab,PraweshLazarus,LelikaSatyapal,Kapil S Great auricular nerve Fetuses Branching pattern Anatomical variation The great auricular nerve (GAN) is the largest branch of the superficial cervical plexus that winds around the posterior border of the sternocleidomastoid muscle, accompanied by the external jugular vein. Forty fetuses (right side: 40/80; left: 40/80) with gestational ages between 15 to 28 weeks were microdissected to document the anatomy of the GAN. The results obtained were classified as: i) Incidence and morphometry: GAN was present in 100% of the fetal specimens with average length on the right and left sides recorded as 12.65 ± 2.14 mm and 12.55 ± 2.82 mm respectively. ii) Course: GAN was located parallel to the transverse cervical nerve and the external jugular vein. Duplicate external jugular veins were observed in 5% (4/80) with GAN located anterior to one of the tributaries; iii) Branching Pattern: 16% (13/80) of specimens depicted a single branch. Duplicate branches in 67% (54/80) (referred to as Type I: anterior and posterior branches and 33% (26/80) referred to as Type II: anterior and posterior branches; iv) Variation: the transverse cervical nerve formed a communication with GAN, inferior to the parotid gland in 1%. The anatomical knowledge of the course, bifurcation pattern and variations of GAN may prevent complications during surgical procedures such as parotidectomies.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.30 n.1 20122012-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100006en10.4067/S0717-95022012000100006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Great auricular nerve Fetuses Branching pattern Anatomical variation
spellingShingle	Great auricular nerve Fetuses Branching pattern Anatomical variation Pillay,Pathmavathie Partab,Prawesh Lazarus,Lelika Satyapal,Kapil S The Great Auricular Nerve in Fetuses
description	The great auricular nerve (GAN) is the largest branch of the superficial cervical plexus that winds around the posterior border of the sternocleidomastoid muscle, accompanied by the external jugular vein. Forty fetuses (right side: 40/80; left: 40/80) with gestational ages between 15 to 28 weeks were microdissected to document the anatomy of the GAN. The results obtained were classified as: i) Incidence and morphometry: GAN was present in 100% of the fetal specimens with average length on the right and left sides recorded as 12.65 ± 2.14 mm and 12.55 ± 2.82 mm respectively. ii) Course: GAN was located parallel to the transverse cervical nerve and the external jugular vein. Duplicate external jugular veins were observed in 5% (4/80) with GAN located anterior to one of the tributaries; iii) Branching Pattern: 16% (13/80) of specimens depicted a single branch. Duplicate branches in 67% (54/80) (referred to as Type I: anterior and posterior branches and 33% (26/80) referred to as Type II: anterior and posterior branches; iv) Variation: the transverse cervical nerve formed a communication with GAN, inferior to the parotid gland in 1%. The anatomical knowledge of the course, bifurcation pattern and variations of GAN may prevent complications during surgical procedures such as parotidectomies.
author	Pillay,Pathmavathie Partab,Prawesh Lazarus,Lelika Satyapal,Kapil S
author_facet	Pillay,Pathmavathie Partab,Prawesh Lazarus,Lelika Satyapal,Kapil S
author_sort	Pillay,Pathmavathie
title	The Great Auricular Nerve in Fetuses
title_short	The Great Auricular Nerve in Fetuses
title_full	The Great Auricular Nerve in Fetuses
title_fullStr	The Great Auricular Nerve in Fetuses
title_full_unstemmed	The Great Auricular Nerve in Fetuses
title_sort	great auricular nerve in fetuses
publisher	Sociedad Chilena de Anatomía
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100006
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The Great Auricular Nerve in Fetuses

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