venous return वाक्य
उदाहरण वाक्य
मोबाइल
- This, the observed diminished stroke volume ( cardiac output ) is certainly contributory and, in turn, is a reflection of diminished venous return and contracted effective circulating blood volume induced by spaceflight factors.
- Normal Central Venous Pressure ( though it can't be said to control venous return ) is only about 2-6 mmHg .-Nunh-huh 07 : 23, 1 October 2005 ( UTC)
- Therefore, increases in venous pressure or decreases in right atrial pressure or venous resistance will lead to an increase in venous return, except when changes are brought about by altered body posture ( see below ).
- For example, if systemic venous return is suddenly increased ( e . g ., changing from upright to supine position ), right ventricular preload increases leading to an increase in stroke volume and pulmonary blood flow.
- Of key importance was Wood and colleague's recognition that gravitationally induced loss of consciousness ( GLOC ) was due to relative loss of arterial pressure pushing blood to the head rather than a loss of venous return.
- Signs of classical cardiac tamponade include three signs, known as Low blood pressure occurs because of decreased stroke volume, jugular-venous distension due to impaired venous return to the heart, and muffled heart sounds due to fluid buildup inside the pericardium.
- Therefore, one could just as well say that venous return is determined by the mean aortic pressure minus the mean right atrial pressure, divided by the resistance of the entire systemic circulation ( i . e ., the systemic vascular resistance ).
- As arterial blood under high pressure enters the cavernous sinus, the normal venous return to the cavernous sinus is impeded and this causes engorgement of the draining veins, manifesting most dramatically as a sudden engorgement and redness of the eye of the same side.
- A primary contribution, allowing for the shift from pulsatile water filled bladders to non-pulsatile air filled bladders, made by the Mayo investigators was to show that maintenance of arterial pressure rather than venous return was required to maintain perfusion of the eyes and brain.
- In contrast to the drainage of midgut and hindgut structures by the superior mesenteric vein and inferior mesenteric vein respectively, venous return from the coeliac artery is through either the splenic vein emptying into the hepatic portal vein or via smaller tributaries of the portal venous system.
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