Disease States Involving Disturbances of Haemostasis. Normal Human Haemostatic Mechanisms Haemostasis is the control of blood loss from the circulation, involving a number of separate events including coagulation. The process is as follows: 1. Vasoconstriction (Vasospasm). When the initial injury occurs to a blood vessel, it constricts with enough intensity to close the vessel. It occurs as the result of 2 separate mechanisms: a) local reflexes of the nervous system. b) biochemical- serotonin and epinephrine are released …
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showed last 75 words of 2179 total
…an intensive care unit. REFERENCES McCance K.L. and Heuther S.E. 1997, Pathophysiology. The Biologic Basis for Disease in Adults and Children. 3rd Edition. Mosby, Missouri. The Merck Manual. 1996. 16th Edition. Merck, N.J. (Chapters 4,6,9 &15) Tortora G.J. and Grabowski S.R. 1996, Principles of Anatomy and Physiology. 8th Edition. Harper Collins, N.Y. White J. 1987 "Elapid Snakes: Aspects of Envenomation" in Toxic Plants and Animals: A Guide for Australia . QLD Museum, Brisbane. (pp 404 - 407.)