HomeCoursesMEDSCI 142: Organ SystemsLecture 11 Lecture 11 0% Question 1 of 28 Where are baroreceptors located? Carotid artery and aorta.Where are baroreceptors located? == Carotid artery and aorta. Question 1 of 28Question 2 of 28 What 2 factors influence blood pressure? (equation) (CO x TPR = BP).What 2 factors influence blood pressure? (equation) ==(CO x TPR = BP). Question 2 of 28Question 3 of 28 Where does most of the blood reside? Veins/vinules.Where does most of the blood reside? ==Veins/vinules. Question 3 of 28Question 4 of 28 How does the pressure change over aorta-arteries? 70 – 110 average aorta – arteries.How does the pressure change over aorta-arteries? ==70 – 110 average aorta – arteries. Question 4 of 28Question 5 of 28 How does pressure change through arterioles? Drops from 90 (mean) – 36.How does pressure change through arterioles? ==Drops from 90 (mean) – 36. Question 5 of 28Question 6 of 28 What does it mean that an arterial has tone? Under a degree of tension. (Smooth muscle)What does it mean that an arterial has tone? ==Under a degree of tension. (Smooth muscle) Question 6 of 28Question 7 of 28 What is filtration? Fluid leaving capillaries into interstitial space.What is filtration?==Fluid leaving capillaries into interstitial space. Question 7 of 28Question 8 of 28 What is reabsorption? Fluid entering capillaries from interstitial fluid.What is reabsorption? ==Fluid entering capillaries from interstitial fluid. Question 8 of 28Question 9 of 28 Why does pressure fall over a capillary? Fluid leaves capillaries.Why does pressure fall over a capillary? ==Fluid leaves capillaries.Question 9 of 28Question 10 of 28 What pressure draws fluid into the capillary? Blood Colloid Osmotic Pressure. (Oncotic)What pressure draws fluid into the capillary? ==Blood Colloid Osmotic Pressure. (Oncotic) Question 10 of 28Question 11 of 28 What causes osmotic pressure? Proteins dissolved in plasma that cannot exist capillary.What causes osmotic pressure? ==Proteins dissolved in plasma that cannot exist capillary. Question 11 of 28Question 12 of 28 What do arterioles do to BP? (2) Increase it due to constriction, decrease pulsitility.What do arterioles do to BP? (2) ==Increase it due to constriction, decrease pulsitility. Question 12 of 28Question 13 of 28 How do you determine Net Filtration Pressure in arteriole end of capillary? BC – BCOP (36 – 26) = 10 mm Hg.How do you determine Net Filtration Pressure in arteriole end of capillary? ==BC – BCOP (36 – 26) = 10 mm Hg. Question 13 of 28Question 14 of 28 What is the BCOP at the venule end? 26 mmHg.What is the BCOP at the venule end? ==26 mmHg. Question 14 of 28Question 15 of 28 What is the BHP at the venule end? 16 mmHg.What is the BHP at the venule end? ==16 mmHg. Question 15 of 28Question 16 of 28 Why has BHP dropped? Fluid left capillaries.Why has BHP dropped? ==Fluid left capillaries. Question 16 of 28Question 17 of 28 How is the cardiovascular system arranged – in series or parallel? Parallel.How is the cardiovascular system arranged – in series or parallel? ==Parallel. Question 17 of 28Question 18 of 28 What does this mean to flow and pressure for each region? Flow & pressure is the same to each area.What does this mean to flow and pressure for each region? ==Flow & pressure is the same to each area. Question 18 of 28Question 19 of 28 Where is the velocity change in different types of vessels? Capillaries. (Lumen size)Where is the velocity change in different types of vessels? ==Capillaries. (Lumen size) Question 19 of 28Question 20 of 28 Where does the volume change? Does not change.Where does the volume change?== Does not change. Question 20 of 28Question 21 of 28 Why does the volume not change? Area of capillaries much larger.Why does the volume not change? ==Area of capillaries much larger. Question 21 of 28Question 22 of 28 Why does the flow / speed / velocity change? Lumen size.Why does the flow / speed / velocity change? ==Lumen size. Question 22 of 28Question 23 of 28 What happens when arterioles dilate? (to flow?) Flow increases.What happens when arterioles dilate? (to flow?) ==Flow increases. Question 23 of 28Question 24 of 28 What are the internal layers of the tunica intima? Basement membrane and endothelium internal elastic lamina.What are the internal layers of the tunica intima? ==Basement membrane and endothelium internal elastic lamina. Question 24 of 28Question 25 of 28 What is a fenustrated capillary? Endothelial membrane full of pores.What is a fenustrated capillary? ==Endothelial membrane full of pores. Question 25 of 28Question 26 of 28 What is a sinusoid capillary? incomplete basement membrane, large pores, large intercellular gaps.What is a sinusoid capillary? ==incomplete basement membrane, large pores, large intercellular gaps. Question 26 of 28Question 27 of 28 What is the purpose of the cardiovascular system driving blood about the body? Exchange through capillaries.What is the purpose of the cardiovascular system driving blood about the body? ==Exchange through capillaries. Question 27 of 28Question 28 of 28 What happens if filtration exceeds reabsorption? Edema.What happens if filtration exceeds reabsorption? ==Edema. Question 28 of 28 Loading...
