To discuss:
The primary functions of the nephron loop and DCT, and what they reabsorb.
Introduction:
In the whole of the glomerular filtrate, about 65% are reabsorbed by the proximal convoluted tubule. The proximal convoluted tubule removes wastes present in the blood and excretes them through the urine. Due to the presence of microvilli (its greater length), the proximal convoluted tubule has the benefits of increasing its surface area for absorption. Proximal convoluted tubule cells are equipped with a rich source of large mitochondria that produce ATP, which supports active transport. Of all the calories that are consumed in a day, only 6% of ATP is needed by the proximal convoluted tubule.
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Chapter 23 Solutions
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- Water and small solutes enter nephrons during ________. a. filtration b. reabsorption c. secretion d. both a and barrow_forwardAs a person ages, nephron tubules lose some of their ability to concentrate urine. What is the effect of this change?arrow_forwardAs the text noted, two-thirds of the water and solutes that the body reclaims by reabsorption in nephrons occurs in the proximal tubule. Proximal tubule cells have large numbers of mitochondria and demand a great deal of oxygen. Explain why.arrow_forward
- the fine network of blood vessels which surrounds all of the tubules of the nephron is called the __________.arrow_forwardJuxtamedullary nephrons none of these have very short nephron loops. make up about 80-85% of the nephrons within the kidney. O allows excretion of very concentrated urine.arrow_forwardThe urine transport from the kidney to the urinary bladder calledarrow_forward
- physiology of micturition and the use of sphincters. (simple and easy and in own words) dot pointsarrow_forwardWhich part of a nephron forms the bulk of the tissue between two adjacent medullary raysarrow_forwardPart of Structure of the wall Role in (cells, their appearance, formation arrangement) the nephrone of urinearrow_forward
- Please simply and explain all function and processes of renal systemarrow_forwardhow os blood flow to the glomerus effected by the affrent and effrent diamterarrow_forwardThe functional unit of the kidney is called ________.a. the renal hilusb. the renal corpusclec. the nephrond. Bowman’s capsulearrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
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