Comparison of the anatomical arrangement of the branches arising from the descending aorta in rabbit (Oryctolagus cuniculus f. domestica) and European hare (Lepus europaeus)

Biologia ◽  
2015 ◽  
Vol 70 (12) ◽  
Author(s):  
David Mazensky ◽  
Slavka Flesarova ◽  
Vladimír Kuzma ◽  
Peter Supuka
Keyword(s):  
Mesenteric Artery ◽  
Oryctolagus Cuniculus ◽  
Anatomical Variations ◽  
Celiac Artery ◽  
High Variability ◽  
Lepus Europaeus ◽  
European Hare ◽  
Descending Aorta ◽  
Median Sacral Artery ◽  
Anatomical Arrangement

AbstractThe aim of the study was to describe the possible anatomical variations in origin of the branches arising from the descending aorta in rabbit and hare. The study was carried out on ten adult rabbits and ten adult European hares. The study was carried out using the corrosion technique. After the euthanasia, the vascular network was perfused with saline. Spofacryl Dental © was used as a casting medium. After polymerisation of the medium, the maceration was carried out in KOH solution. We found high variability in origin of the branches arising from the descending aorta in both species. The variations in the level of the origin of the celiac artery, cranial mesenteric artery, renal arteries, ovarian arteries, testicular arteries and caudal mesenteric artery were present between both species and within the same species. In some individuals of both species, variations in the level and the arrangement of the origin of the dorsal intercostal arteries, lumbar arteries and median sacral artery were present. According to our results, it can be concluded that the anatomical arrangement of branches of descending aorta shows a higher number of variations in domesticated rabbit in comparison with the hare.

scholarly journals The Arterial Vascularization of the Small and Large Intestine in Adult Male Turkeys (Meleagris gallopavo)

2020 ◽  
Vol 44 ((E0)) ◽  
pp. 69-74
Author(s):  
Rabab Naser ◽  
Iman M. Khaleel
Keyword(s):  
Large Intestine ◽  
Mesenteric Artery ◽  
Intestinal Tract ◽  
Distal Part ◽  
Celiac Artery ◽  
Mesenteric Arteries ◽  
Male Adult ◽  
Descending Aorta ◽  
Short Branch ◽  
Small And Large Intestine

The aim of this study was to reveal the blood supply of the intestinal tract in male adult turkey. Five healthy birds were collected from local suppliers at Baaqoba province. All birds were euthanized and their coelomic cavity was dissected. The descending aorta was cannulated and injected with colored latex, and then the course of arteries along the intestinal tract investigated. Small intestine received the blood by celiac artery, cranial and caudal mesenteric artery. Celiac was split into two branches right and left, the right branch of celiac artery supplied the proventriculus, gizzard, duodenum, pancreas, jejunum and distal part of ileum and cecum while left branch supply the stomach. The crania mesenteric artery nourished the terminal parts of duodenum, jejunum ileum and cranial part of the two ceca, on the other hand. Caudal mesenteric artery was the third artery that supplied the intestine which was short branch originated from descending aorta and divided into two groups cranial groups supplied distal part of ileum and base of ceca while the caudal groups supplied the rectum and cloaca and anastomosed with cranial mesenteric artery. Form the above results, it was concluded that the small and large intestine are nourished by the three major arteries namely Celiac, Cranial and Caudal mesenteric arteries and its branches.

scholarly journals Origin Level of the Ventral Branches of the Abdominal Aorta in the Rabbit and European Hare

2017 ◽  
Vol 61 (2) ◽  
pp. 22-26
Author(s):  
D. Maženský ◽  
S. Flešárová
Keyword(s):  
Abdominal Aorta ◽  
Mesenteric Artery ◽  
Lumbar Vertebra ◽  
Ventral Surface ◽  
Celiac Artery ◽  
Middle Part ◽  
Mesenteric Arteries ◽  
Corrosion Casting ◽  
European Hare ◽  
Fifth Lumbar Vertebra

AbstractThe aim of this research was to describe the level of origin of the branches originating from the ventral surface of the abdominal aorta in the rabbit and hare. The study was carried out on ten adult rabbits and ten adult European hares using the corrosion cast technique. After euthanasia, the vascular network was perfused with saline. Batson’s corrosion casting kit No. 17 was used as a casting medium. After polymerization of the medium, the maceration was carried out in a KOH solution. We found variable levels of the origin of the celiac, cranial mesenteric and caudal mesenteric arteries in both species. In the rabbit, the celiac artery originated in the majority of cases at the cranial end of the first lumbar vertebra and in the hare at the middle part of the vertebral body of the same vertebra. The cranial mesenteric artery in the rabbit originated predominantly at the level of the first lumbar vertebra and in the hare at the level of the second lumbar vertebra. In the rabbit, the caudal mesenteric artery originated mainly at the level of the sixth lumbar vertebra and in the hare, at the level of the fifth lumbar vertebra. We concluded that there were higher variabilities of the origins of the ventral branches of the abdominal aorta in domesticated rabbit in comparison with the European hare.

scholarly journals Management of Spontaneous Isolated Mesenteric Artery Dissection: A Systematic Review

2021 ◽  
pp. 145749692110005
Author(s):  
S. Acosta ◽  
F. B. Gonçalves
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Superior Mesenteric Artery ◽  
Mesenteric Artery ◽  
Conservative Therapy ◽  
Case Series ◽  
Celiac Artery ◽  
Artery Dissection ◽  
Covered Stents ◽  
Bowel Infarction

Background and Aims: There are increasing reports on case series on spontaneous isolated mesenteric artery dissection, that is, dissections of the superior mesenteric artery and celiac artery, mainly due to improved diagnostic capacity of high-resolution computed tomography angiography performed around the clock. A few case–control studies are now available, while randomized controlled trials are awaited. Material and Methods: The present systematic review based on 97 original studies offers a comprehensive overview on risk factors, management, conservative therapy, morphological modeling of dissection, and prognosis. Results and Conclusions: Male gender, hypertension, and smoking are risk factors for isolated mesenteric artery dissection, while the frequency of diabetes mellitus is reported to be low. Large aortomesenteric angle has also been considered to be a factor for superior mesenteric artery dissection. The overwhelming majority of patients can be conservatively treated without the need of endovascular or open operations. Conservative therapy consists of blood pressure lowering therapy, analgesics, and initial bowel rest, whereas there is no support for antithrombotic agents. Complete remodeling of the dissection after conservative therapy was found in 43% at mid-term follow-up. One absolute indication for surgery and endovascular stenting of the superior mesenteric artery is development of peritonitis due to bowel infarction, which occurs in 2.1% of superior mesenteric artery dissections and none in celiac artery dissections. The most documented end-organ infarction in celiac artery dissections is splenic infarctions, which occurs in 11.2%, and is a condition that should be treated conservatively. The frequency of ruptured pseudoaneurysm in the superior mesenteric artery and celiac artery dissection is very rare, 0.4%, and none of these patients were in shock at presentation. Endovascular therapy with covered stents should be considered in these patients.

Bombardioidea stercoris. [Descriptions of Fungi and Bacteria].

2020 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
Czech Republic ◽  
New Zealand ◽  
Canary Islands ◽  
Oryctolagus Cuniculus ◽  
Bos Taurus ◽  
Conservation Status ◽  
Ovis Aries ◽  
Lepus Europaeus ◽  
Falkland Islands ◽  
Faroe Islands

Abstract A description is provided for Bombardioidea stercoris, a dung-inhabiting fungus associated with Bos taurus, Cervidae, Lepus europaeus, L. timidus, Oryctolagus cuniculus and Ovis aries. Some information on its morphology, economic impacts, habitats, dispersal and transmission and conservation status is given, along with details of its geographical distribution (Canada (Quebec), Argentina, Chile, Falkland Islands/Malvinas, Spain (Canary Islands), Australia (Victoria), New Zealand, Belgium, Czech Republic, Denmark (including Faroe Islands), Estonia, France, Germany, Irish Republic, Italy, Luxembourg, Netherlands, Poland, Slovakia, Slovenia, Spain, Sweden, UK and former Yugoslavia).

scholarly journals Ischemia-reperfusion histopathology alterations of the rabbit intestinal wall with and without exclusion of the collateral mesenteric circulation supply

2010 ◽  
Vol 25 (4) ◽  
pp. 318-321 ◽  
Author(s):  
Otoni Moreira Gomes ◽  
Geraldo Brasileiro Filho ◽  
Luiz Alberto Bomjardim Porto ◽  
Pedro Henrique de Lima Prata ◽  
Rafael de Mattos Paixão
Keyword(s):  
Small Bowel ◽  
Mesenteric Artery ◽  
Collateral Circulation ◽  
Ischemia Reperfusion ◽  
Celiac Artery ◽  
Artery Occlusion ◽  
Intestinal Wall ◽  
Group I ◽  
Group 2 ◽  
Group 1

PURPOSE: To evaluate the histopathology alterations of the intestinal mucosa of rabbits submitted to different times of mesenteric artery ischemia and reperfusion with and without celiac artery collateral circulation supply. METHODS: Two groups of eight male New Zealand white rabbits (weight 2.2-3.5 kg) were used in this study. In the Group 1 animals, the proximal mesenteric artery was occluded for 60 min with an atraumatic vascular clamp, followed by reperfusion for 60 min. In the Group 2 animals the small bowel and mesentery were cut 30cm and 60cm far from the gastroduodenal pyloric transition before the proximal mesenteric artery occlusion. Small bowel biopsies were obtained before ischemia (control), after 30 min and 60 min of mesenteric ischemia and at 30 and 60 min. of mesenteric artery reperfusion. RESULTS: In the Group I animals, the followings histopathology grade results were observed: t1, mean 0.4 + 0.29; t2, mean 1.9 ± 0.38; t3, 1.9 ± 0.33; t4, 1.2 ± 0.36 and t5, 1.2 ± 0.32. Differences between t0 and t2 and between t3 and t4 were statistically significant (p<0.05). Differences between t2 and t3 and t4 and t5 were not significant (p>0.5). In the Group II animals, it was observed: t1, mean 1.6 ± 0.33; t2, 2.4 ± 0.36; t3, 3.0 ± 0.35; t4 3.4 ± 0.31; t5, 3 ± 031. Differences between t0 and t1, t1 and t2, and t2 and t3 were significant (p<0.05). Differences between histopathology grades results of samples t1 to t5 in Group 1 and 2 were statistically significant (p<0.5). CONCLUSION: Microscopic examination of the biopsies revealed significant evidence of worse small bowel wall ischemia-reperfusion lesions by exclusion of the celiac artery collateral circulation supply.

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