MR. KIERNAN'S DISCOVERY OF VARICOSE CAPILLARIES.
نویسندگان
چکیده
منابع مشابه
Malpighi and the discovery of capillaries.
Leonardo da Vinci clearly observed and described capillaries. Using the microscope, Marcello Malpighi examined the brain and major organs to demonstrate their finer anatomical features. This led to his discovery in 1661, of capillaries that proved fundamental to our understanding of the vascular system in the brain and cord. He hypothesized that capillaries were the connection between arteries ...
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Marcello Malpighi is considered to be the founder of microscopic anatomy. For almost 40 years he used the newly invented microscope to study and discover many structures of human body, animals and plants. One of his greatest contributions to science was the establishment by direct observation of an anatomical linkage between arteries and veins, the capillary network, a monumental work that comp...
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Saphenous veins were taken for examination: unchanged, varicose with thrombophlebitis and varicose thrombus. The contents of haemoglobin and protein were determined in the homogenate of that material. Only small quantities of haemoglobin were found in walls of unchanged veins. Greater amounts of haemoglobin were observed in walls of varicose veins, especially in walls of varicose veins with thr...
متن کاملMR Venography for the Assessment of Deep Vein Thrombosis in Lower Extremities with Varicose Veins.
OBJECTIVE To assess the performance of magnetic resonance venography (MRV) for pelvis and deep vein thrombosis in the lower extremities before surgical interventions for varicose veins. MATERIALS AND METHODS We enrolled 72 patients who underwent MRV and ultrasonography before stripping for varicose veins of lower extremities. All images of the deep venous systems were evaluated by time-of-fli...
متن کاملVaricose Veins
Under normal circumstances, blood collected from superficial venous capillaries is directed upward and inward via one-way valves into superficial veins. These in turn drain via perforator veins, which pass through muscle fascia into deeper veins buried under the fascia. Leakage in a valve causes retrograde flow back into the vein. Unlike deep veins which are thick-walled and confined by fascia,...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1839
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(02)80368-3