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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

BLANCO, C et al. Morphological Characterization of Biceps Femoris Muscle in the Dog. Int. J. Morphol. [online]. 2014, vol.32, n.4, pp.1303-1305. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022014000400029.

From previous studies on the anatomy of the femoral biceps muscle in the dog and with the aim of advancing in immunohistochemical and nervous characterization of this muscle, we studied the existence of subvolumes in muscle structure. We used blunt dissection in isolated muscle pieces fixed and treated with 25% nitric acid. The divisions of the sciatic nerve branches involved were used to guide the dissection. Three subvolumes were identified; one, involving the caudal head, and two in the cranial head belly; they were called caudal, proximal and distal respectively. We measured muscle fiber length, orientation, and macroscopic density to characterize these compartments. These subvolumes must be considered when muscle electromyography research is carried out, and for locomotion changes evaluation due to lesions in nerve and muscle structure of the canine pelvic limb.

Keywords : Biceps femoris; Canine; Muscle compartmentalization.

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