Sex-related macrostructural organization of the deer's brachial plexus.
Anat Histol Embryol
; 36(4): 295-9, 2007 Aug.
Article
em En
| MEDLINE
| ID: mdl-17617108
ABSTRACT
We describe the morphological organization of the deer brachial plexus in order to supply data to veterinary neuroclinics and anaesthesiology. The deer (Mazama gouazoubira) brachial plexus is composed of four roots three cervical (C6, C7 and C8) and one thoracic (T1). Within each sex group, no variations are observed between the left and the right brachial plexus, though sex-related differences are seen especially in its origin. The origin of axillary and radial nerves was C6, C7, C8 and T1 in males and C8-T1 (radial nerve) and C7, C8 and T1 (axillary nerve) in females; musculocutaneous nerve was C6-C7 (males) and C8-T1 (females); median and ulnar nerves was C8-T1 (males) and T1 (females); long thoracic nerve was C7 (males) and T1 (females); lateral thoracic nerve was C6, C7, C8 and T1 (males) and T1 (females); thoracodorsal nerve was C6, C7, C8 and T1 (males) and C8-T1 (females); suprascapular nerve was C6-C7 (males) and C6 (females) and subscapular nerve was C6-C7 (males) and C7 (females). This study suggests that in male deer the origin of the brachial plexus is more cranial than in females and the origin of the brachial plexus is slightly more complex in males, i.e. there is an additional number of roots (from one to three). This sexual dimorphism may be related to specific biomechanical functions of the thoracic limb and electrophysiological studies may be needed to shed light on this morphological feature.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Plexo Braquial
/
Cervos
Limite:
Animals
Idioma:
En
Revista:
Anat Histol Embryol
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Brasil