Distribution and functional significance of muscle islands in the tunica media of the aorta in the goat (Capra hircus)
The presence of muscle islands in the tunica media of elastic arteries has been reported in both large and small ruminants. According to some authors, these islands can have a certain influence on the physical-mechanical properties and the pattern of diseases in the aortic wall. The aim of the curr...
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| Format: | Article |
| Language: | English |
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University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca
2024-04-01
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| Series: | Cluj Veterinary Journal |
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| Online Access: | https://clujveterinaryjournal.ro/index.php/cvj/article/view/60 |
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| author | Melania Crisan Cosmin-Rareș Cret Radu Constantinescu Calin Latiu Mircea Cipou Cristian Olimpiu Martonoș Aurel Damian |
| author_facet | Melania Crisan Cosmin-Rareș Cret Radu Constantinescu Calin Latiu Mircea Cipou Cristian Olimpiu Martonoș Aurel Damian |
| author_sort | Melania Crisan |
| collection | DOAJ |
| description |
The presence of muscle islands in the tunica media of elastic arteries has been reported in both large and small ruminants. According to some authors, these islands can have a certain influence on the physical-mechanical properties and the pattern of diseases in the aortic wall. The aim of the current study was to highlight the muscle islands and their distribution throughout the aortic segments in the goat and to understand the reason why they are present only in certain species of animals, including the goat. Gross anatomical dissection of the aorta was performed and samples from the following segments were harvested for histological investigations: ascending aorta, aortic arch, descending thoracic aorta and descending abdominal aorta. The muscle islands in the wall of the aortic segments are formed by smooth muscle cells interconnected with connective tissue and are preferentially vascularized by vasa vasorum and innervated by nervi vasorum. The aorta in the goat presents polymorphic muscle islands, arranged in the outer two thirds of the tunica media in the ascending aorta, the outer half at the level of the aortic arch and the descending thoracic aorta, but they are absent in the descending abdominal aorta. Their presence completes the windkessel function of the aortic wall, thus constituting an additional pump necessary to propel the blood towards the abdominal viscera, which in goats, in addition to those present in monogastrics, also contain three large and very active organs, namely the rumen, the reticulum and the omasum.
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| first_indexed | 2024-04-24T11:43:57Z |
| format | Article |
| id | doaj.art-95933b9d00a6483f8e5731b27878b2f2 |
| institution | Directory Open Access Journal |
| issn | 2066-9399 |
| language | English |
| last_indexed | 2024-04-24T11:43:57Z |
| publishDate | 2024-04-01 |
| publisher | University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca |
| record_format | Article |
| series | Cluj Veterinary Journal |
| spelling | doaj.art-95933b9d00a6483f8e5731b27878b2f22024-04-09T12:03:50ZengUniversity of Agricultural Sciences and Veterinary Medicine Cluj-NapocaCluj Veterinary Journal2066-93992024-04-0129110.52331/z3nc1197Distribution and functional significance of muscle islands in the tunica media of the aorta in the goat (Capra hircus)Melania Crisan0Cosmin-Rareș CretRadu Constantinescu1Calin Latiu2Mircea Cipou3Cristian Olimpiu Martonoș4Aurel Damian5University of Agricultural Sciences and Veterinary Medicine Cluj NapocaUniversity of Agricultural Science and Veterinary Medicine Cluj-Napoca, Faculty of Animal Science and Biotechnologies, 3-5 Calea Mănăștur Street, 400372, Cluj-Napoca, Cluj County, Romania . University of Agricultural Science and Veterinary Medicine Cluj-NapocaAssisi Veterinary Clinic, Swords, Co. Dublin, Ireland Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; School of Veterinary Medicine, Ross University, Basseterre P.O. Box 334, Saint Kitts and Nevis; Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania The presence of muscle islands in the tunica media of elastic arteries has been reported in both large and small ruminants. According to some authors, these islands can have a certain influence on the physical-mechanical properties and the pattern of diseases in the aortic wall. The aim of the current study was to highlight the muscle islands and their distribution throughout the aortic segments in the goat and to understand the reason why they are present only in certain species of animals, including the goat. Gross anatomical dissection of the aorta was performed and samples from the following segments were harvested for histological investigations: ascending aorta, aortic arch, descending thoracic aorta and descending abdominal aorta. The muscle islands in the wall of the aortic segments are formed by smooth muscle cells interconnected with connective tissue and are preferentially vascularized by vasa vasorum and innervated by nervi vasorum. The aorta in the goat presents polymorphic muscle islands, arranged in the outer two thirds of the tunica media in the ascending aorta, the outer half at the level of the aortic arch and the descending thoracic aorta, but they are absent in the descending abdominal aorta. Their presence completes the windkessel function of the aortic wall, thus constituting an additional pump necessary to propel the blood towards the abdominal viscera, which in goats, in addition to those present in monogastrics, also contain three large and very active organs, namely the rumen, the reticulum and the omasum. https://clujveterinaryjournal.ro/index.php/cvj/article/view/60goat, aorta, tunica media, muscle islands |
| spellingShingle | Melania Crisan Cosmin-Rareș Cret Radu Constantinescu Calin Latiu Mircea Cipou Cristian Olimpiu Martonoș Aurel Damian Distribution and functional significance of muscle islands in the tunica media of the aorta in the goat (Capra hircus) Cluj Veterinary Journal goat, aorta, tunica media, muscle islands |
| title | Distribution and functional significance of muscle islands in the tunica media of the aorta in the goat (Capra hircus) |
| title_full | Distribution and functional significance of muscle islands in the tunica media of the aorta in the goat (Capra hircus) |
| title_fullStr | Distribution and functional significance of muscle islands in the tunica media of the aorta in the goat (Capra hircus) |
| title_full_unstemmed | Distribution and functional significance of muscle islands in the tunica media of the aorta in the goat (Capra hircus) |
| title_short | Distribution and functional significance of muscle islands in the tunica media of the aorta in the goat (Capra hircus) |
| title_sort | distribution and functional significance of muscle islands in the tunica media of the aorta in the goat capra hircus |
| topic | goat, aorta, tunica media, muscle islands |
| url | https://clujveterinaryjournal.ro/index.php/cvj/article/view/60 |
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