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Article
Variations in the Origin and Contributions of Arteries supplying the Human Hippocampus

Author: Nameer T. George
Journal: Journal of the Faculty of Medicine مجلة كلية الطب ISSN: 00419419 / 24108057 Year: 2007 Volume: 49 Issue: 4 Pages: 504-507
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Variations in the arterial supply in the human brain are not uncommon. Of particular interest is that of the hippocampus. Knowledge of the vascular anatomy is a key to the surgical treatment of pathologies in this region. Objectives: The aim of the work is a detailed description of the variations and contribution of the anterior choroidal artery and the branches of the posterior cerebral artery to the supply of the hippocampus and comparing the results with previous studies. Materials and Methods: Formalin-fixed brains from 15 adult cadavers (30 hemispheres) were examined using a magnifying lens. The hippocampus is identified, and the arteries that are in the vicinity to hippocampus were carefully dissected and studied. Results: The anterior choroidal artery (AchA), and the lateral posterior choroidal arteries (LPChAs) were present in 100% of the specimens examined. AChA anastomosed with the anterior branches of LPChA in 31% of specimens. The hippocampal artery, a brunch of the posterior cerebral artery, was present in 82.8% of specimen. The anterior and middle temporal arteries were present in 80% of hemispheres. Conclusions: ACA has the most constant origin, course and distribution. It supplied the rstra1 and middle portions of the hippocampus and in the absence of the hippocampal arterial branches of the posterior cerebral artery (PCA), AchA supplied the major portion of the hippocampus. The branches, mainly from P-2A and P-2P segments, of the PCA supplied the middle and posterior portions of the hippocampus. Variations in their origin from different segments were noted. The major branches were: the LPChAs, the hippocampal arteu, the anterior and middle temporal arteries. The common temporal arterydid not contribute to the arterial supply of the hippocampus.


Article
The Iraqi Project to Provide Saudi Arabia with Water
الـعـراق ومشروع تزويد المملكة العربية السعودية بالمياه

Author: . Rayan T. Mahmood ريان ذنون محمود العباسي
Journal: Regional Studies دراسات اقليمية ISSN: 18134610 Year: 2007 Issue: 6 Pages: 161-180
Publisher: Mosul University جامعة الموصل

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Abstract

At the end of 1950s',King Saud Bin Abdul-Asis had presented an idea Concerning with drawing Waters from South of Iraq. The aim of these Waters is to provide drinking Waters and Waters for irrigation for the lands near by the Capital Al-Rayath,At that time, Correspondence between Iraq and Saudi Arabia have been exchanged ended in Contracting many primary and Consultative negotiations among officials of both Countries. Both Parties have agreed on fulfilling the project of with drawing Waters from the Iraqi Lands by choosing a suitable Location. The first from Euphrates and second from shat al-arab.on this basis special technical designs have been prepared by the relative engineering companies.The project has failed due to Some problems and difficulties facing it and this has led both Iraqi and Saudi governments to forget it and waiting for another chance to study it later.

مع نهاية عقد الخمسينات من القرن المنصرم، طرح الملك الراحل سعود بن عبد العزيز فكرة مبدئية ترمي إلى سحب المياه من جنوبي العراق، بهدف الاستفادة منها في توفير المياه الصالحة للشرب وارواء الأراضي الزراعية القريبة من العاصمة الرياض، فجرى في ذلك الوقت تبادل للمراسلات بين العراق والسعودية، انتهت بعقد العديد من المباحثات التمهيدية والتشاورية بين مسؤولي البلدين، وافق بعدها الطرفان على تنفيذ مشروع لسحب المياه من الأراضي العراقية، عن طريق اختيار موقع ملائم لسحب المياه، الأول يكون من نهر الفرات والثاني من شط العرب. فتم على هذا الأساس إعداد وتحضير التصاميم الفنية الخاصة بهذا المشروع من قبل الشركات الهندسية المعنية، إلا ان هذا المشروع سرعان ما تعرض في نهاية المطاف إلى الفشل بسبب الصعوبات والمشاكل الكثيرة التي واجهته، مما جعل الحكومتان العراقية والسعودية تقرران صرف النظر عنه مؤقتاً ريثما تتاح الفرصة المواتية لإعادة النظر بدراسته مرةً ثانية تمهيداً للبدء بعمليات تنفيذه لاحقاً .

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