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Exam 4

Stack #1

QuestionAnswer
Which of the following is the site where we would find the majority of the nephron loop? Renal Pyramid
What two structures constitute the renal corpuscle? Glomerulus and Bowman's capsule
Which cells of the juxtaglomerular apparatus secrete renin? Granular cells
Which of the following is the primary function of the juxtaglomerular complex? Releases chemical signals that regulate the rate of filtrate formation
The functional and structural unit of kidneys is the ______? Nephron
T/F The proximal convoluted tubule is the portion of the nephron that attaches to the collecting duct. False, It's the distal convoluted tubule
What is the chief force pushing water and solutes out of the blood and across the filtration membrane of the glomerulus? Hydrostatic pressure in glomerular capillaries (HPgc)
T/F Glomerular capillaries are drained by efferent arterioles whose diameter is smaller than the afferent arterioles that feed them; this creates the high blood pressure that drives filtration. True
If the diameter of the efferent arterioles leading away from the glomerulus increases (vasodilation), which of the following is NOT likely to occur? Systemic blood pressure will decrease
The chief force pushing water and solutes out of the blood across the filtration membrane is_____? Glomerular hydrostatic pressure (glomerular blood pressure)
T/F Glomerular filtration is an ATP-drive process. False
The factor that promotes filtrate formation at the glomerulus is the _____? Glomerular hydrostatic pressure
What area of the nephron is responsible for the reabsorption of most of the water from the filtrate as well as most nutrients? Proximal convoluted tubule
T/F The ascending limb of the loop of Henle is permeable to water. False, permeable to solutes not water
An increase in the permeability of the cells of the collecting tubule to water is due to a(n) _____? Increase in the production of ADH (Anti-diuretic hormone)
The descending limb of the nephron loop _____ Contains fluid that becomes more concentrated as it moves down into the medulla.
What is the effect of antidiuretic hormone on the cells of the collecting duct? Causes aquaporins to be inserted into the apical membranes
Where does antidiuretic hormone (ADH) exert its effect to promote water absorption? Collecting duct
Excretion of dilute urine requires ______ Impermeability of the collecting tubule to water
Which of the following best describes the function of the urethra? Transport of urine from the bladder to the outside of the body.
Created by: jlanier1
 

 



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