Pathology 3500 Lecture Notes - Lecture 17: Abdominal Cavity, Microcirculation, Vomiting
21 Mar 2018
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Lecture 17- disturbances of flood flow and body fluids. Hemorrhage: a discharge or escape of blood from the blood vessel into (blood outside the circulatory system, exterior of the body (ex. Out the mouth: a body cavity (ex. Under the skin, brain tissue: causes of hemorrhage, trauma to large blood vessels. Infection: pulmonary tuberculosis (lung) - erodes the blood vessels in the area and causes damages and rupture of blood vessels = hemorrhage. Invasive tumors: erosion of blood vessels - rupture of blood vessels, hypertension. Increase intraluminal blood pressure: most common cause for hemorrhage in the brain like a stroke, hemorrhagic diatheses (spontaneous hemorrhage, thrombocytopenia (results in spontaneous hemorrhage) Severe decrease in number of platelets: effects small blood vessels, deficiency of coagulation/clotting factors, affecting capillaries (small blood vessels, presented as petechiae, purpura. Petechari: 1-2 mm, rupture of capillaries or atriole.
