dilation of the afferent arteriole constriction of the afferent arteriole dilation of the efferent arteriole Correct! both constriction of the afferent arteriole and dilation of the efferent arteriole are correct none of the above would decrease GFR Question 49 0 / 1 pts If a person becomes severely dehydrated and their colloid osmotic pressure increases, this would lead to _________ GFR. Correct Answer a lower than normal You Answered a higher than normal no change in
Question 50 1 / 1 pts In normal kidneys, blood cells and most plasma proteins are ____________. filtered then reabsorbed secreted then reabsorbed Correct! not filtered filtered and secreted none of the above are correct Question 51 1 / 1 pts 99% percent of the filtrate formed through renal filtration is reabsorbed. Correct! True False Question 52 1 / 1 pts The majority of filtrate reabsorption occurs in the _________. Correct! proximal convoluted tubule distal convoluted tubule ascending limb of loop of Henle descending limb of loop of Henle collecting duct Question 53 1 / 1 pts An ion that is commonly linked to secondary active transport during reabsorption in nephrons is _________. K+ Cl- Ca2+ HCO3- Correct! Na+ Question 54 During paracellular transport, substances can be reabsorbed by the renal tubule by traveling between two adjacent cells. Correct! True False Question 55 Which of the following is not secreted into the lumen of the nephron? K+ H+ penicillin benzoate Correct! inulin
Question 56 1 / 1 pts Amount of urine excreted = Correct! amount filtered + amount secreted - amount reabsorbed amount filtered - amount secreted - amount reabsorbed amount filtered + amount secreted + amount reabsorbed amount reabsorbed + amount secreted - amount filtered amount filtered x amount secreted x amount reabsorbed Question 57 1 / 1 pts The urine of an individual will contain glucose when ___________. blood pressure is abnormally low (hypotension) blood sugar levels are abnormally low (hypoglycemia) Correct! plasma glucose concentration has reached renal threshold the loop of Henle is hyperactive the kidney starts to produce new molecules of glucose Question 58 0 / 1 pts The renal clearance of which of the following is used in clinical settings to estimate GRF? Correct Answer creatinine You Answered inulin insulin penicillin glucose Question 59 1 / 1 pts Urine is stored in the bladder until it is released through a process known as _________. matriculation Correct! micturition mastication meditation none of the above are correct Question 60 1 / 1 pts The internal sphincter muscle of the bladder is classified as __________ muscle and is under ___________ control. smooth/voluntary Correct! smooth/involuntary skeletal/voluntary skeletal/involuntary cardiac/involuntary
Question 61 Which of the following diseases is caused by a lack of pulmonary surfactant? Correct! newborn respiratory distress syndrome (NRDS) emphysema bronchitis sleep apnea fibrotic lung disease Question 62 Which of the following statements about asthma are true?
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