充血

充血是指体内各個组织的血液流量增加的過程。血管會通過舒張來改变不同组织的血液供应。在临床上，组织充血表現為出現红斑或皮肤发红，此時血管被含氧的血液所充斥[1]。

参考文献
  1. Jon Aster; Vinay Kumar; Abul K. Abbas; Nelson Fausto. 8th. Philadelphia: Saunders. 2009: 113. ISBN 978-1-4160-3121-5.
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