To discuss:
Fluid flow from the point where it filters from the blood to the point where it leaves the kidney: those parts of the renal tubule that belong to a single nephron and the part that is shared by multiple nephrons.
Introduction:
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ANATOMY AND PHYSIOLOGY THE UNITY OF FORM
- Water and small solutes enter nephrons during ________. a. filtration b. reabsorption c. secretion d. both a and barrow_forwardReabsorption depends on _________. a. osmosis across the nephron wall b. active transport of sodium across the nephron wall c. a steep solute concentration gradient d. all of the abovearrow_forwardFigure 41.6 Which of the following statements about the nephron is false? The collecting duct empties into the distal convoluted tubule. The Bowman’s capsule surrounds the glomerulus. The loop of Henle is between the proximal and distal convoluted tubules. The loop of Henle empties into the distal convoluted tubule.arrow_forward
- Fatty tissue holds the kidneys in place. Extremely rapid weight loss may cause this tissue to shrink so that the kidneys slip from their normal position. On rare occasions, the slippage can put a kink in one or both ureters and block urine flow. Suggest what might then happen to the kidneys.arrow_forwardDescribe (and label on a diagram) the structures of a nephron (including associated blood vessels) and give the functions of each structure.arrow_forwardFigure 41.5 Which of the following statements about the kidney is false? The renal pelvis drains into the ureter. The renal pyramids are in the medulla. The cortex covers the capsule. Nephrons are in the renal cortex.arrow_forward
- Which of the following does not contribute to the process of filtration? (a) active transport by epithelial cells lining renal tubules (b) large surface area for filtration (c) low permeability of glomerular capillaries (d) high hydrostatic blood pressure in glomerular capillaries (e) podocytesarrow_forwardThe afferent arteriole delivers blood to the (a) renal artery (b) efferent arteriole (c) renal vein (d) capillaries of the glomerulus (e) peritubular capillariesarrow_forwardWhich of the following does not contribute to the high salt concentration in the interstitial fluid of the kidney medulla? (a) active transport of sodium from the upper part of the ascending limb (b) diffusion of salt from the ascending limb of the loop of Henle (c) reabsorption of salt from various regions of Bowmans capsule (d) counterflow of fluid through the two limbs of the loop of Henle (e) diffusion of urea out of the collecting ductarrow_forward
- The Human Nephron and Associated Blood Vessels capillaries efferent arteriole afferent arteriole Structure 2 Structure 1 Structure 3 Structure 4 to renal vein to urinary bladder Which of the following rows correctly identifies the structures of the nephron numbered 1 to 4 on the diagram above? Row Structure 1 Structure 2 Structure 3 Structure 4 glomerulus collecting duct loop of Henle distal tubule collecting duct Bowman's capsule loop of Henle distal tubule proximal tubule collecting duct glomerulus loop of Henle Bowman's proximal tubule collecting duct loop of Henle Capsulearrow_forwardThe inner surface of ____ contains microvilli to increase surface area for absorption. the glomerulus the proximal convoluted tubule the descending and thin ascending limbs of the nephron loop the collecting ductarrow_forwardWhich of the following nephron components lies almost directly opposite the glomerulus? Papillary duct Collecting duct Loop of Henle Proximal convoluted tubulearrow_forward
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