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Anais da Academia Brasileira de Ciências

versão impressa ISSN 0001-3765versão On-line ISSN 1678-2690


SOUZA NETO, JOSÉ RICARDO N. DE; BRANCO, ÉRIKA; GIESE, ELANE G.  e  LIMA, ANA RITA DE. Morphological Characterization of Diaphragm in Common Squirrel Monkey (Saimiri sciureus). An. Acad. Bras. Ciênc. [online]. 2018, vol.90, n.1, pp.169-178. ISSN 0001-3765.

The wall of the diaphragm can be affected by congenital or acquired alterations which allow the passage of viscera between the abdominal and chest cavities, allowing the formation of a diaphragmatic hernia. We characterized morphology and performed biometrics of the diaphragm in the common squirrel monkey Saimiri sciureus. After fixation, muscle fragments were collected and processed for optical microscopy. In this species the diaphragm muscle is attached to the lung by phrenopericardial ligament. It is also connected to the liver via the coronary and falciform ligaments. The muscle is composed of three segments in total: 1) sternal; 2) costal, and 3) a segment consisting of right and left diaphragmatic pillars. The anatomical structures analyzed were similar to those reported for other mammals. Histological analysis revealed stable, organized muscle fibers with alternation of light and dark streaks, indicating transverse striation.

Palavras-chave : diaphragmatic hernia; morphology; Saimiri sciureus.

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