Absence of right posterior communicating artery
Journal Title: International Journal of Anatomical Variations - Year 2017, Vol 10, Issue 0
Abstract
The circle of Willis represents a vascular network located at the base of the skull in the interpeduncular fossa. The anterior cerebral artery forms the anterior section of the circle of Willis from the right and left sides. The anterior cerebral arteries from both sides are joined by the anterior communicating artery. In the posterior part, the basilar artery separates into the right and left posterior cerebral arteries, and their connection to the ipsilateral internal carotid artery is provided via a posterior communicating artery. The posterior communicating artery, which represents a significant element of the circle of Willis, functions as a collateral channel for maintaining the blood flow. In this study, the presence of an anatomical variation was determined in the right posterior communicating artery while performing the routine cadaver dissection. It was determined that the right posterior communicating artery was absent in a male cadaver. Since the posterior communicating artery represents one of the elements of the circle of Willis maintaining the cerebral blood flow in case of the failure of principle conduits, information on its anatomical variations is clinically important.
Authors and Affiliations
Rahime Sekerci, Muzaffer Sindel, Özhan Özgür, Güneş Aytaç, Timur Sindel
Identification of an aberrant testicular vein draining the right kidney
The Venous drainage of the testicles is asymmetric. The left testicular vein drains into the left renal vein while the right vein drains into the inferior vena cava (IVC). However, this textbook pattern is commonly compl...
Analysis of left thumb print pattern among different human blood groups
Introduction: A fingerprint is the reproduction of the friction ridges present on the inner surface of a fingertip. In the court of law, fingerprint proof is undeniably the most dependable and acceptable evidence till da...
Renal artery origins, destinations and variations: Cadaveric study in Ethiopian population
Introduction: Renal arteries are paired end arteries branched from abdominal aorta at the level of first lumbar vertebra (L1) and second lumbar vertebra (L2), which consumes around 20% of the cardiac output. Due to embry...
First report of a “latissimo-cleidocostal” muscle on the anterolateral thoracic wall
During routine cadaveric dissection of the thorax and upper limb in a clinical gross anatomy course, we identified an unusual, supernumerary muscle in the right torso of a 91 year-old, Caucasian male. This consisted of a...
Variations of interdigital flexion creases–inciting the curiosity of the researchers, professionals and the public
Missing or extra digital creases in individuals with or without certain syndromes and/or phenotypic changes are a source of continuous interest for geneticists, researchers and even forensic professionals. Still, with th...