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Bio Lab 4

TermDefinition
Aneurysm Thin, weakened section of the wall of an artery or a vein and it bulges outward.
Blood Pressure Force exerted by blood against the walls of blood vessels due to contraction of the heart
Capillaries Very small diffusion vessels between an arteriole and a venule
Coronary arteries Arteries that supply oxygen and nutrients to the cardiac muscle.
Deep vein thrombosis Thrombus in a deep vein of lower limbs
Embolus Blood clot, bubble of air, fat from broken bones or pieces of debris transported by blood stream
Occlusion Closure or obstruction of the lumen of a structure
Orthostatic hypotension Sudden drop in BP when you sit or stand
Pulse Expansion and recoil of artery after each contraction of the left ventricle.
Vasoconstriction Decrease in size of lumen of blood vessel due to smooth muscle contraction
Vasodilation Increase in size of lumen of blood vessel due o smooth muscle relaxation
Venule Small vein that collects blood from capillaries and delivers it to a vein
Mean arterial Pressure Pressure forcing blood into tissues averaged over the cardiac cycle.
Hypotension Reading of <95/60
Hypertension Reading of >140/90
Created by: Lillejoa
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