Yazar "Buyukmumcu, Mustafa" seçeneğine göre listele
Listeleniyor 1 - 10 / 10
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Anatomic and radiologic analysis of the atlantal part of the vertebral artery(ELSEVIER SCI LTD, 2009) Cengiz, Sahika Liva; Cicekcibas, Aynur; Kiresi, Demet; Kocaogullar, Yalcin; Cicek, Onur; Baysefer, Alper; Buyukmumcu, MustafaThe horizontal third segment (V3h) of the vertebral artery (VA) in 7 cadavers (14 sides) was dissected and the anatomical measurements recorded. Measurements from 24 healthy individuals (48 sides) were taken for comparison using multislice CT scanning. The distance between the medial Lip of the VA V3h and the line passing through the mid point of the posterior tuberculum of the atlas was marked as length A. The distance between the medial tip of the VA V3h and the point penetrating the dura mater was classified as length B. The angle between these lines was the alpha (a) angle. Measurements were taken when the head was in a neutral position, as well as in maximum right and left rotation, extension and flexion. In cadavers, the mean alpha angle (+/- S.D.) was 82.42 +/- 10.34 degrees and 83.21 +/- 10.81 degrees on the right and left side, respectively. On multislice CT scanning, the mean a angle was 81.64 +/- 10.15 degrees on the right and 83.77 +/- 10.65 degrees, on the left. These angles varied with the position of the head. (C) 2008 Elsevier Ltd. All rights reserved.Öğe Clinical Significance of Maxillary Artery and its Branches: A Cadaver Study and Review of the Literature(SOC CHILENA ANATOMIA, 2011) Uysal, Ismihan Ilknur; Buyukmumcu, Mustafa; Unver Dogan, Nadire; Seker, Muzaffer; Ziylan, TanerThe aim of this study was to investigate the anatomy of the maxillary artery (MA) and its branches. Fourteen sides of Turkish adult cadavers were dissected. The specimens were classified according to the relation between MA and the lateral pterygoid. After the removal of the lateral pterygoid, parts and branches of MA were exposed. We classified the branching patterns of MA in the pterygopalatine fossa. The calibers and lengths of the arteries, and the distance between the zygomatic arch and MA, and between the infratemporal crest and MA were measured. The MA was found superficial to the lateral pterygoid in 57.2%. The inferior alveolar artery (IA) was arisen from MA before the middle meningeal artery (MM) in 35.7%, after MM in 35.7%. The IA and MM were arisen from the same area of MA in 14.3 %. In other two cases IA was arisen from the beginning of MA (14.3%). According to the contours of third portion of MA, we classified "Y" type (50%), "intermediate-T" type (14.3%), and "M" type (35.7%). This reinvestigation of the clinical anatomy of MA may provide useful information to the head and neck surgeons, dentists, neurosurgeons and radiologists related with this region.Öğe The Course and Variations of the Branches of the Musculocutaneous Nerve in Human Fetuses(WILEY, 2009) Uysal, Ismihan Ilknur; Karabulut, Ahmet Kagan; Buyukmumcu, Mustafa; Unver Dogan, Nadire; Salbacak, AhmetThe course and branches of the musculocutaneous nerve (MCN) were dissected in 140 human fetal arms. The MCN entered the superior, middle, and inferior part of coracobrachialis in 43%, 37%, and 17% of arms, respectively, and the remaining 3% did not pierce coracobrachialis. The motor branches to biceps were classified as follows: Type 1 (83.6%): a single branch that bifurcated to supply the two heads of biceps; Type 2 (14.3%): two separate branches each innervating one head of biceps; Type 3 (2.1%): a single branch that bifurcated to supply each head of biceps plus an additional branch that innervated the distal part of biceps. The motor branches to brachialis were classified as follows: Type 1 (93.6%): a single branch to brachialis; Type 2 (6.4%): a single branch that bifurcated into two branches both supplying brachialis. Communications between the MCN and the median nerve (MN) were observed in 10% of specimens, of which three types (A, B, C) could be identified depending on their origin and union. In the most frequently observed type (13, 50% of cases) the communicating branch arose from the proximal part of the MCN and joined the MN in the middle or distal part of arm. The data presented here will be of use to surgeons, especially pediatric surgeons who undertake surgical procedures in the axilla and arm. Clin. Anat. 22:337-345, 2009. (C) 2008 Wiley-Liss, Inc.Öğe Determination of the effects of extremely low frequency electromagnetic fields on the percentages of peripheral blood leukocytes and histology of lymphoid organs of the mouse(SAUDI MED J, 2008) Cicekcibasi, Aynur E.; Celik, Ilhami; Salbacak, Ahmet; Ozkan, Yasemin; Okudan, Nilsel; Buyukmumcu, MustafaObjectives: To determine the effects of very weak, extremely low frequency (50 Hz) electromagnetic field (ELF-EMF) on the relative spleen weight, lymphoid organ histology, peripheral blood leukocyte and alpha-naphthyl acetate esterase positive (ANAE-positive) lymphocyte percentages of the mouse. Methods: The study was carried out in Scientific Research and Application Center of Selcuk University, Konya, Turkey in 2005. A total of 120 Swiss albino mice were divided into 6 groups (20 in each group). The experimental animals were exposed to 1, 2, 3, 4 and 5 mu T flux intensities (rms) of EMF at 50 Hz for 40 days. Results: In the exposure groups with 20 animals, the body weight (BW) increased gradually in higher field intensities and reached at peak level in the 4 mu T, and then slightly decreased. The relative spleen weight (% of the BW) was not affected. The ELF-EMF treatment did not cause any significant change in lymphocyte, monocyte and ANAE-positive lymphocyte ratios, whereas percentages of neutrophils and basophiles changed non-linearly. Any change in the lymphoid organ histology, which is attributable to the field effect, was not observed in the exposure groups. Conclusion: Extremely low frequency-EMF exposure with the flux intensities between 1-5 mu T for 40 days did not cause any effect on the relative spleen weight, lymphoid organ histology, leukocyte and ANAE-positive lymphocyte percentages of the mouse.Öğe Developmental variations and clinical importance of the fetal thyroid gland - A morphometric study(SAUDI MED J, 2007) Cicekcibasi, Aynur E.; Salbacak, Ahmet; Seker, Muzaffer; Ziylan, Taner; Tuncer, Isik; Buyukmumcu, MustafaObjectives: To investigate the morphologic structures and developmental anomalies of the thyroid gland in human fetuses. Methods: This study performed in the Department of Anatomy, Meram Faculty of Medicine between February and April in 2002. Fetuses were obtained from the Gynecology Department of the Meram Faculty of Medicine, Selcuk University, and Dr. Faruk Sukan Maternity Hospital (Konya, Turkey). Sixty spontaneously aborted fetuses (30 boys and 30 girls) between the ages of 13.5th and 32.5th weeks, which had no detectable anomalies, were evaluated. The gland was dissected under the microscope. The location of the gland was determined according to the tracheal ring levels and laryngeal cartilage levels. The length, width and thickness of both lobes and isthmus of the gland were measured and then, the developmental anomalies were Me obtained data were statistically analyzed by Least Squares noted. in variant analysis. Results: Although there was no significant difference regarding to the gender for all parameters except in width of the right lobe (P<0.05), difference in the length and width of lobes and the length of isthmus between trimesters was significant (P<0.05). All measured parameters were increasing with advancing gestational age. Tbe pyramidal lobe was observed in 18.3% of the cases. Conclusion: Normal dimensions and developmental anomalies of the fetal thyroid, which was shown in this study, may provide useful information for the prenatal diagnosis and in-utero treatment of thyroid dysfunctions.Öğe The Levator Claviculae Muscle and Unilateral Third Head of the Sternocleidomastoid Muscle: Case Report(SOC CHILENA ANATOMIA, 2010) Fazliogullari, Zeliha; Cicekcibasi, Aynur Emine; Unver Dogan, Nadire; Yilmaz, Mehmet Tugrul; Buyukmumcu, Mustafa; Ziylan, TanerA rare case of unilateral third head of sternocleidomastoid and an extra muscle levator claviculae were determined unilaterally in a 70-year-old male cadaver during the routine dissections. In the left neck side, it was observed that the sternocleidomastoid muscle also had a third part in addition to known sternal and clavicular heads and levator claviculae muscle which arose from the posterior tubercle of the transverse process of the 3rd cervical vertebra and attached to the posterior margin of the clavicle. An awareness of this variations may be important because of its close relationship with neurovascular structures during neck operations.Öğe The lumbar roots and pedicles: a morphometric analysis and anatomical features(ELSEVIER SCI LTD, 2008) Torun, Fuat; Tuna, Hakan; Buyukmumcu, Mustafa; Caglar, Sukru; Baysefer, AlperThe objective of this study was to conduct a morphometric analysis of the lumbar nerve roots and surrounding structures. In this investigation, the lumbar roots were studied in 14 cadavers (70 lumbar vertebrae). Lumbar pedicle heights and widths were measured at every level of the lumbar vertebrae. The largest mean root diameter was 5.6 mm (L5 root) and the smallest 3.5 mm (L1 root). With regard to the root-dura exit angle, the widest was measured at L1 as 26.2 +/- 1.6 degrees and the narrowest at L5 as 16.3 +/- 2.4 degrees. The widest lumbar pedicle was measured at L5 as 17.1 +/- 4.2 mm and the narrowest at L1 as 8.4 +/- 1.8 mm. The longest lumbar pedicle was measured at L2 as 15.3 +/- 2.2 mm and the shortest at L4 as 13.8 +/- 2.3 mm. Quantitative measurements of lumbar root diameters, their exit angles from the dura, and lumbar pedicle heights and widths in anatomical dissection models may help us to gain a deeper understanding of the pathologies of this region and positively influence the success of surgical interventions. (c) 2007 Elsevier Ltd. All rights reserved.Öğe Morphometric Analysis of Suprarenal Glands (Adrenal Glands) with Multislice Computerized Tomography(SOC CHILENA ANATOMIA, 2017) Akin, Duygu; Yilmaz, Mehmet Tugrul; Ozbek, Orhan; Ozbiner, Huseyin; Cicekcibasi, Aynur Emine; Buyukmumcu, Mustafa; Kabakci, Anil DidemThe aim of our study are to determine the shape, vertebrae level, height, volume, corpus medial and lateral branch thicknesses of AG and the distance from some neighboring structures on multidetector computed tomography (MDCT) images and also to determine the relationship between these data and gender, age, height, weight and body mass index (BMI). The study was conducted on a total of 420 MDCT images consisted of 220 male (mean age 63.44 +/- 8.00, 50-81 years), 200 female (mean age 61.23 +/- 7.95, 50-84 years) healthy individuals. Vertebrae level of AG (VLAG), height of AG (HAG), adrenal gland volume (VAG), corpus thickness of AG (CTAG), medial section thickness of AG (MTAG) and lateral section thickness of AG (LTAG) were investigated. In our study, RAG were observed on T12 vertebrae level in 38.19 % of males and 42.5 % of females and LAG were also observed at that level in 39.55 % of the male and 51 % of the female individuals. RAG were observed in all males and 98.5 % of the females and LAG were observed 88.63 % of the males and 94 % of the females "Y" shaped. VAG were observed lower in males compared to females in age groups and VAG was observed increasing with age in males; decreased in 60-69 age group of females and increased again in 70 and plus age group. The aim of this study is to determine normal ranges of AG sizes and the relationship of each one with sex, age, height, weight and BMI.Öğe Proximal STA to proximal PCA bypass using a radial artery graft by posterior oblique transzygomatic subtemporal approach(SPRINGER, 2009) Ulku, Cagatay Han; Cicekcibasi, Aynur Emine; Cengiz, Sahika Liva; Ustun, Mehmet Erkan; Buyukmumcu, MustafaThe aim of the present study was to investigate the use of a radial artery graft (RAG) for bypass of the proximal superficial temporal artery (STA) to proximal posterior cerebral artery (PCA) by posterior oblique transzygomatic subtemporal approach as an alternative to the external carotid artery (ECA) to PCA anastomosis. We conducted an anatomical and technical study at a university hospital. Five adult cadaveric specimens were dissected. A preauricular vertical skin incision was used. The trunk of STA was identified. A 30 degrees oblique posterior zygomatic arch osteotomy and microcraniotomy was performed. The dura of the middle cranial fossa was then opened. The temporal lobe was retracted, the interpeduncular and ambient cisterns were opened, and the P2 segment of the PCA was exposed. The proximal side of the RAG was anastomosed with the proximal STA and the distal side was anastomosed with the P2 segment. The mean caliber of the proximal STA was 2.25 +/- 0.35 mm. The mean diameter of the P-2 was 2.2 +/- 0.2 mm. The average length of the RAG was 56 +/- Ce3.2 mm. The mean caliber of the proximal and the distal sides of the graft was 2.5 +/- 0.25 mm and 2.3 +/- Ce0.15 mm, respectively. Because the proximal STA to proximal PCA bypass uses a short RAG and their calibers are over 2 mm, this bypass technique can provide a sufficient blood flow and may be a reasonable alternative over ECA to PCA bypass using long grafts.Öğe Transzygomatic-subtemporal approach for middle meningeal-to-P2 segment of the posterior cerebral artery bypass: An anatomical and technical study(THIEME MEDICAL PUBL INC, 2006) Ustun, Mehmet Erkan; Buyukmumcu, Mustafa; Ulku, Cagatay Han; Guney, Oender; Salbacak, AhmetWe evaluated the use of a bypass between the middle meningeal artery (MMA) and P2 segment of the posterior cerebral artery (PCA) as an alternative to an external carotid artery (ECA-to-PCA) anastomosis. Five adult cadaveric heads (10 sides) were used. After a temporal craniotomy and zygomatic arch osteotomy were performed, the dura of the floor of the middle cranial fossa was separated and elevated. The MMA was dissected away from the dura until the foramen spinosum was reached. Intradurally, the carotid and sylvian cisterns were opened. After the temporal lobe was retracted, the interpeduncular and ambient cisterns were opened and the P2 segment of the PCA was exposed. The MMA trunk was transsected just before the bifurcation of its anterior and posterior branches where it passes inside the dura and over the foramen spinosum. It was anastomosed end to side with the P2 segment of the PCA. The mean caliber of the MMA trunk before its bifurcation was 2.1 +/- 0.25 mm, and the mean caliber of the P2 was 2.2 +/- 0.2 mm. The mean length of the MMA used to perform the bypass was 32 +/- 4.1 mm, and the mean length of the MMA trunk was 39.5 +/- 4.4 mm. This bypass procedure is simpler to perform than an ECA-to-P2 revascularization using long grafts. The caliber and length of the MMA trunk are suitable to provide sufficient blood flow. Furthermore, the course of the bypass is straight.