Abstract
Vascular reactivity has a fundamental role in regulating blood flow and tissue oxygen consumption. Vascular tone is regulated by receptors in endothelial and smooth muscle cells which can be stimulated by biochemical signals or a physical stimulus [1]. Receptor abundance and their response to stimuli is different among the different vascular beds, which enables fine tuning between organ perfusion and oxygen consumption according to different metabolic needs [1]. Vascular reactivity contributes to maintain the adequacy of tissue perfusion in response to acute injury such as sepsis and trauma [2]. This compensatory response can redirect regional blood flow towards organs where a decrease in oxygen consumption would have detrimental consequences for the organism such as the brain and the coronary arteries [3].
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Gorrasi, J., Takala, J., Jakob, S.M. (2006). The Vascular Bed during Critical Illness: Evaluation in Animal Models. In: Vincent, JL. (eds) Intensive Care Medicine. Springer, New York, NY. https://doi.org/10.1007/0-387-35096-9_12
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DOI: https://doi.org/10.1007/0-387-35096-9_12
Publisher Name: Springer, New York, NY
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