Macroanatomy of the Azygos Vein: A Comparative Description between Human, Dog and Sheep
Journal Title: International Journal of Medical Research & Health Sciences (IJMRHS) - Year 2016, Vol 5, Issue 7
Abstract
In this study, the macroanatomy of the azygos vein in the dog and sheep were compared to those of human. The obtained results showed that in dog it originates from cranial vena cava on the right side of thoracic cavity and the segmental veins arise from that as dorsal intercostal veins for draining blood from the vertebral column. In sheep the azygos vein lies on the left side of the thoracic cavity and originates from the coronary sinus of the right atrium. In human specimens, the azygos vein arise opposite the vertebra LI or LII at the junction between the right ascending lumbar vein and the right subcostal vein. The hemiazygos vein form on the left side from the lower three posterior intercostal veins, then ascends anterior of the vertebral column to the eighth thoracic level then cross the vertebral column posterior to the aorta, esophagus and thoracic duct and ends in the azygos vein. It concluded that the most anatomical similarities were seen between the azygos vein of the dog and human. However, the most anatomical differences were existed between the azygos vein of the sheep and human.
Authors and Affiliations
Mohsen Zhaleh| Department of Laboratory Science, School of Paramedicine, Kermanshah University of Medical Science, Kermanshah, Iran, Corresponding Email: zhaleh.mohsen@gmail.com, Nader Goodarzi| Department of Basic Sciences, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran, Mohammad Mahdi Zangeneh| Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran, Akram Zangeneh| Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran, Hossein Zhaleh| Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
Keywords
Related Articles
- EP ID EP11897
- DOI -
- Views 294
- Downloads 21
Effect of Pain Caused by Cold Presser on Changes in Cerebral Blood Circulation Using fNIRS
The purpose of this study is to measure hemodynamic changes in prefrontal cortex caused by acute cold in the right hand using fNIRS to calibrate the amount of pain caused by acute cold. fNIRS is a noninvasive functional...
CASE REPORT OF VON RECKLINGHAUSENS’ DISEASE
Neurofibromatosis type -1 is a familial tumour syndrome belonging to genodermatosis group of disorders. It is genetically transmitted by autosomal doiminance with variable penetrance. The disorder is characterized by b...
Evaluation of the Effect of Educating Self Care Behavior of Heart failure Patients on Economy of Health
Heart disease is the most costly reason for hospitalization. The purpose of this research was evaluation of the influence of teaching self care behavior for heart failure patients on economy of health in hospitals in t...
Unexpected high rate of Lophomonas blattarum in resistant upper and lower respiratory infection
Lophomonas blattarum inhabits the intestines of cockroaches and mites. This study aimed to evaluate the existence of this protozoan parasite in bronchoalveolar lavage (BAL) samples of patients with respiratory disorders...
Unusual hydatid cyst in a 16 years old girl presented by shoulder pain
Hydatid disease is caused by Echinococcus granulosus and is endemic in many parts of the world, including Iran. This parasitic tapeworm can produce cysts in almost every organ of the body, with the liver and lung being...