Species-specific Variations in the Gross Anatomy of the Rete mirabile cerebrale in Ox and Sheep
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Authors
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Masuood Ahmad John
Department of Veterinary Anatomy and Histology, SKUAST-K, Srinagar, 190001, India,
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A.R.Choudhury
Department of Veterinary Anatomy and Histology, SKUAST-K, Srinagar, 190001, India,
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Andleeb Rafiq
Department of Veterinary Anatomy and Histology, SKUAST-K, Srinagar, 190001, India,
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Firdous Ahmad Dar
Department of Veterinary Anatomy and Histology, SKUAST-K, Srinagar, 190001, India,
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Mohd yusuf Dar
Department of Veterinary Anatomy and Histology, SKUAST-K, Srinagar, 190001, India,
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Jasvinder singh sasan
Department of Veterinary Anatomy and Histology, SKUAST-K, Srinagar, 190001, India,
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Mir Shabbir Ahmad
Department of Veterinary Anatomy and Histology, SKUAST-K, Srinagar, 190001, India,
Keywords:
Brain, Gross anatomy, Ox, Rete mirabile cerebrale, Sheep,Abstract
The rete mirabile cerebrale is one of the vital structures associated with the ruminant brain believed to play a crucial role in the cooling of the arterial circulation in this organ. The present study was therefore designed to study this vital structure in sheep and ox so as to observe any comparative differences using both ventral and dorsal approaches. A total of three adult animal heads (N=3), one sheep obtained from slaughterhouse and two male bovine heads collected during post-mortem examination were used for the present study. In ox, the rete mirabile cerebrale consisted of a well-developed rostral epidural rete and a smaller caudal epidural rete. In contrast, sheep possessed only the rostral epidural rete, with complete absence of the caudal rete. The rostral epidural rete was H-shaped in both the ox and sheep. From the present study it was concluded that the arterial blood from vertebral artery has no role in enriching the cerebrum in case of sheep. These findings highlighted species-specific variations in the organization of the rete mirabile cerebrale among ruminants and underscores its potential role in cerebral thermoregulation.
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