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20 Cards in this Set
- Front
- Back
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Ventricle fibrilation
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entire ventricle not contracting together (leaks blood) which could kill you!
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electrical defibrilation
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restores normal stimulation of heart to correct situation
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Myocardial ischemia
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lack of blood flow to the heart
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Necrosis
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death of cardiac cells
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Acute myocardial infarction
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heart attack
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Cardiac arrest
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when heart isnt working
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Angina pectoris
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pain in chest due to lack of blood flow to myocardium ( can come from ischema)
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Vascular spasm
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muscle that goes through spasms which can cut off blood supply
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coronary artery disease
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build up of plaque in the blood vessels (making them narrower)
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thrombus
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blood clot attached to blood vessels
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Embolus
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clot breaks off and circulates in blood arteries (blocks blood)
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Atherosclerosis
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build up of plaque in blood vessels and can start in infancy
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What is the most common type of Arteriosclerosis?
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Atherosclerosis
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What accounts for 50% of deaths in the US
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Atherosclerosis
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What RE SOME OF THE MANY FACTORS that help increase plaque in your arteries?
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*smoking
*food high in saturated fats *lack of exercise *gum disease *snoring *anything increasing BP |
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Factors affecting peripheral Resistance
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*arteriolar diameter= most resistance comes here t
*blood viscosity: hicker blood which increses BP *vessel length: those who are taller tends to increase BP |
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Factors Affecting Arteriolar Diameter
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*sympathetic N.S (epinephrine causes basal contraction_
*Myogenic response to stretch *heat: diolation dec. PR and BP *cold: contricts, red stays because blood doesnt release oxygen *histamine: diolates (swelling) doesnt release oxygen *O2 basal contriction *CO2 dialation ADH : constriction ect |
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what receptor is used for short term regulation of blood pressure?
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Baroreceptors
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What do baroreceptors do?
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detects blood pressure and restores normal blood pressure, but only for short term use
* if BP is long term, it will not work |
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What helps out for long term regulation of your Blood pressure?
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your kidneys
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