| 21. | Any sympathetic stimulation to the venous system will increase venous return to the heart and ventricular filling.
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| 22. | Perforator veins play a very special role in the venous system, carrying blood from superficial to deep veins.
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| 23. | Both capillary beds and the blood vessels that connect them are considered part of the portal venous system.
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| 24. | Following the ballooning, there is the process of pinching, which separates the "'lymph sacs "'from the venous system.
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| 25. | This spares the portal venous system from high pressure which can cause esophageal varices, caput medusae, and hemorrhoids.
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| 26. | The disease presumably begins with a deep vein thrombosis that progresses to total occlusion of the deep venous system.
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| 27. | In this case they are called perforator veins and have a very important role in the venous system hemodynamics.
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| 28. | It has neurons which generate and release pulses of GnRH into the portal venous system of the pituitary gland.
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| 29. | When thrombophlebitis affects the greater veins, it can progress into the deep venous system, and may lead to pulmonary embolism.
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| 30. | Beginning in 1937 Batson began a series of injection experiments investigating the anatomy and physiology of the cerebrospinal venous system.
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