نتایج جستجو برای: anatomical variations
تعداد نتایج: 339871 فیلتر نتایج به سال:
introduction: vertebral arteries arise from the root of the neck as the first branches from the superior-posterior aspect of the subclavian arteries. they ascend the neck to enter the cranial cavity and supply blood to the brain. methods: a total of 20 cadavers (in 10 years) were dissected for the study of variations in the origin of the vertebral artery. this study was conducted in isfahan uni...
The author studied anatomical variations of the origin of the chorda tympani nerve from the mastoid portion of the facial nerve. The studies were performed on 200 specimens of human temporal bone. It was found that the chorda tympani may arise from the facial nerve in three levels: most commonly from the mid third of its mastoid segment (70%), less commonly from the proximal third (20%), an...
the author studied anatomical variations of the origin of the chorda tympani nerve from the mastoid portion of the facial nerve. the studies were performed on 200 specimens of human temporal bone. it was found that the chorda tympani may arise from the facial nerve in three levels: most commonly from the mid third of its mastoid segment (70%), less commonly from the proximal third (20%), and ve...
Introduction & Objective: Because of widespread use of Functional Endoscopic Sinus Surgery (FESS) technique and basic role of coronal CT- Scan in understanding of normal drainage route of Para-nasal sinuses, identifying the major patterns of inflammatory sinonasal disease and accompanied anatomical variations is crucial for appropriate preoperative surgical planning. The purpose of this stu...
There are many anatomical variations in and around the carpal tunnel that affect the nerves, tendons and arteries in this area. Awareness of these variations is important both during the clinical examination and during carpal tunnel release. The purpose of the present review is to highlight recognized anatomical variations within the carpal tunnel including variation in nerve anatomy, tendon an...
PURPOSE The present study aimed to measure the thickness of the subcutaneous adipose tissue (SAT) at the site of the surgical incision for axillary lymph node dissection (ALND) and to record potential anatomical variations in the medial cutaneous nerve of the arm (MCNA), the intercostobrachial nerve (ICBN), the lateral thoracic vein (LTV), the lateral thoracic artery (LTA) and the pectoral musc...
Background: Several studies have investigated the variations in the anatomy of each segment of circle of Willis whereas a few have addressed the variations of this arterial circle as a whole. In this study the entire circle of Willis and its variations were studied in a cohort of Iranian people and compared with previous reports.Methods: Anatomical variations of the circle of Willis in 132 brai...
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