EXSS 276 FINAL EXAM 2025

The movement of substances from the nephron tubule back into the bloodstream is referred to as: Nephron replacement. Nephron recirculation. Tubular reabsorption. Tubular secretion. - -tubular reabsorption The movement of substances from the bloodstream into the tubular nephron is referred to as: Tubular reabsorption. Tubular secretion. Nephron replacement. Nephron recirculation. - -tubular secretion The process by which plasma minus protein passes from the glomerulus into the tubular nephron is by: Diffusion. Osmsosis. Filtration. Endocytosis. - -filtration Blood entering the kidney arrives at the glomeruli of each nephron through: Cortical veins Peritubular capillaries Afferent arterioles Vasa recta - -afferent arterioles Arrange the following structures in the correct order: 1. Collecting duct 2. Loop of henle 3. Distal convoluted tubule 4. Glomerulus 4, 2, 3, 1 4, 3, 1, 2 2, 3, 1, 4 1, 2, 4, 3 - -4, 2, 3, 1 Glomerulus - loop of henle - distal convoluted tubule - collecting duct EXSS 276 EXSS 276 EXSS 276 Water will move: -in the direction of lower osmotic pressure -in the direction of higher osmotic pressure -in the direction of a fluid with the same osmotic pressure -all of the answer choices are correct - -in the direction of higher osmotic pressure Adh acts on the _____ to regulate facultative water reabsorption. -proximal convoluted tubules -descending portions of the nephron loop -thick and thin segments of the ascending nephron loop -early and late distal convoluted tubules -late distal convoluted tubules and collecting ducts - -late distal convoluted tubules and collecting ducts Which is the correct order of filtrate flow? -glomerular capsule, proximal convoluted tubule (pct), nephron loop, distal convoluted tubule (dct), collecting duct -nephron loop, glomerular capsule, pct, dct, collecting duct -ascending limb of loop, pct, dct, collecting duct -collecting duct, dct, pct, collecting duct, glomerular capsule -pct, glomerular capsule, dct, collecting duct, nephron loop - -glomerular capsule Proximal convoluted tubule (pct) Nephron loop Distal convoluted tubule (dct) Collecting duct Which structure of the nephron reabsorbs the most substances? Glomerular capsule Nephron loop Ascending limb Collecting duct Proximal convoluted tubule - -proximal convoluted tubule (pct) Increased secretion of hydrogen ions would result in a(n) ______________ of blood ____________? Increase, pressure Decrease, volume Increase, sodium levels Decrease, ph Increase, urea - -decrease, ph EXSS 276 EXSS 276 Choose the organ of the urinary system and corresponding function that are matched incorrectly. -the kidneys regulate blood volume and composition -the ureters transport urine from the kidneys to the urinary bladder -the urinary bladder excretes waste in urine -the urethra discharges urine from the body - -the urinary bladder excretes waste in urine Wastes or substances with no useful function in the body are excreted in urine. True False - -true The kidneys produce two hormones, calcitriol and _____. Erythropoietin Testosterone Calcitonin Antidiuretic hormone - -erythropoietin Why are the kidneys said to be retroper