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Unit 4 Coronary/Vein

PSG 111

QuestionAnswer
What is laminar flow? smooth flow of blood
What is aneurysm? weak portion of a dilate artery
If urine production increases what happens to BP and blood volume? BP increasee and blood volume increases
Short-term Bp is regulated by! Adrenal medulary mechanism, barorectors, CNS and Chemoreceptors.
What is the main goal of barorectors and Chemoreceptors? barorectors maintain homestasis and Chemoreceptors ensure oxygen levels to brain and heart.(emergency)Reg PH &Co2 levels.
whattriggers the adrenal medualary mechanism? exercise and stress It increases the sympathic stimulation.
what triggers baroreceptors? changes in the corotid artery and the aorta which affects BP levels.
List the functions of the peripheral circulation. (REDCAT)Regulate blood flow,Exchange substances,Direct blood flow,Carry blood and Transport substances.
List the functions of long-term BP regulations. Renin-Angiotension, Vasopression, Atrial naturaldiretics, Fluid shifts and relaxation response.
What does Epinephrine and Nepinephrine do when released from adrenal medualary mechanism? Increase heart rate and stroke volume(contraction)
How is long-term regulation of blood flow through tissues accomplished? Long-term regulation of blood flow is determined by adequate amount of oxygenated blood flow in the arteries and the metabolic needs of the body.
Cardiac Output? (CO) amount of blood pump by heart in one minute = HR X stroke volume. The CO =HR x SV.
Describe the factors that determined mean arterial pressure. MAP = CO X PR or MAP = HR xSV.
Where are the baroreceptors for carbon dioxide, PH and oxygen located? They are located in large arteries (neck, thorax carotid) aortic arch and carotid sinus.
Define long-term regulation of blood pressure. Long-term blood pressure is regulated by the kidneys.
What fibers of the sympathetic nervous system regulate the activity of the smooth muscle in muscular arteries. Vasomotor fibers
Blood Pressure in the Capillaries is? How many layers are in the capillaries. Blood pressure is relatively low in the capillaries. Capillaries have one layer and veins and arteries have 3 layers.
Created by: 1958abba
 

 



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