منابع مشابه
Ultrasound Imaging of Cervical Spine Motion for Extreme Acceleration Environments
Neck and back pain is one of the most common musculoskeletal complaints in personnel in variable acceleration environments such as astronauts and military pilots. Ultrasound is known for dynamic imaging and diagnostic workup of the axial and appendicular skeleton, but is not currently used to image the cervical spine, the injury of which may change the biomechanics of the cervical vertebrae, wh...
متن کاملExtreme selection in humans against homeotic transformations of cervical vertebrae.
Why do all mammals, except for sloths and manatees, have exactly seven cervical vertebrae? In other vertebrates and other regions, the vertebral number varies considerably. We investigated whether natural selection constrains the number of cervical vertebrae in humans. To this end, we determined the incidence of cervical ribs and other homeotic vertebral changes in radiographs of deceased human...
متن کاملExtreme elongation of the transverse processes of the fifth lumbar vertebra: an unusual variant.
The fifth lumbar vertebra has massive transverse processes that are continuous with the pedicle and encroach the body of the vertebra. These processes are mainly meant for the attachment of the iliolumbar ligament. With increasing age, the iliolumbar ligament can undergo secondary degenerative changes such as calcification, hyalinization, and myxoid degeneration. The authors pre...
متن کاملDrought effects on elongation kinetics and sugar deposition in the elongation zone of durum wheat (Triticum durum Desf.) leaves
The aim of this study was to analyze the effect of drought stress on the kinetics of leaf elongation in relationship to the variation of sugar concentrations and their net deposition rates along the elongation zone of leaf 4 of durum wheat plants. Plants were grown in soil in a naturally illuminated greenhouse, and water...
متن کاملThe clinical effect of uterine hyperflexion and cervical elongation in cases of pelviscopic hysterectomy.
In a retrospective study of women who had undergone pelviscopic hysterectomies in the last 2 years, we focused on postoperative cyclic spotting. Preoperatively, a regular, cyclic menstruation and a premenopausal sexual hormone constellation were common to all patients. In the first group (n = 29), spotting occurred only in association with two uterine anatomical varieties: uterine hyperflexion ...
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ژورنال
عنوان ژورنال: International Journal of Reproduction, Contraception, Obstetrics and Gynecology
سال: 2014
ISSN: 2320-1770
DOI: 10.5455/2320-1770.ijrcog20140919