5 Questions
What is hemorrhage?
Hemorrhage is defined as extravasation of blood from vessels into the extravascular space.
What are the causes of severe hemorrhage from large arteries or veins?
Severe hemorrhage from large arteries or veins is almost always due to vascular injury, including trauma, atherosclerosis, inflammatory or neoplastic erosion of the vessel wall.
What are the distinct patterns of tissue hemorrhage mentioned in the text?
Tissue hemorrhage can occur in distinct patterns, including external bleeding, internal bleeding into serous cavities (e.g. hemothorax, hemoperitoneum, hemopericardium), or into a hollow viscus.
What is hematoma?
Extravasation of blood into the tissues with resultant swelling is known as hematoma.
What are minute hemorrhages into skin, mucous membranes, or serosal surfaces called?
Minute (1- to 2-mm) hemorrhages into skin, mucous membranes, or serosal surfaces are called petechiae.
Test your knowledge of hemorrhage and its mechanism with this quiz. Learn about the extravasation of blood from vessels, increased tendency to hemorrhage in clinical disorders, and the causes of severe hemorrhage due to vascular injury.
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