venous resistance

venous resistance
resistance to blood flow by a vein; under normal conditions it depends largely on extrinsic factors such as compression by surrounding structures. Thrombi often but not always cause an increase in resistance.

Medical dictionary. 2011.

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  • Line, central venous — A catheter (tube) that is passed through a vein to end up in the thoracic (chest) portion of the vena cava (the large vein returning blood to the heart) or in the right atrium of the heart. Central venous lines have a number of different uses. A… …   Medical dictionary

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