52% 11:47 AM parts of the loop of Henle QUESTION 17 1 points Saved The juxtaglom
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52% 11:47 AM parts of the loop of Henle QUESTION 17 1 points Saved The juxtaglomerular aparatus involves macula densa and guxtaglomerular cell:s Oafferent arteriole and DCT podocytes and visceral epitheliumm O A and B QUESTION 181 points Save Answer Which of the following is involved in antidiuretic and its ability to regulate urine production% release is insensitive to the osmolarity of interstitial fluid. increases the permeability of the collecting ducts to water causes the kidneys to produce a larger volume of very dilute urine. O is secreted by the anterior pituitary is secreted in response to low potassium ion in the blood. QUESTION 19 1 points Saved The urinary system is involved in all of the following, except that it regulates plasma concentrations of electrolytes. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Save and SubmitExplanation / Answer
17. The juxtaglomerular apparatus that regulates nephron function is a structure that is found in the kidney. Juxtaglomerular apparatus consists of macula densa and juxtaglomerular cells. The apparatus is found between afferent arteriole and the distal convoluted tubule of the nephron. So, the correct option is option D, A and B.
18. Anti-diuretic hormone (ADH) also known as vasopressin is secreted from the posterior pituitary gland. It increases the amount of reabsorption of water from the filtrate in the kidney tubules. Due to the presence of anti-diuretic hormone, the collecting ducts become more permeable to water. This is because ADH causes an increase in the expression of aquaporin 2 channels in the apical plasma membrane of epithelial cells that line the collecting ducts. Because of increased permeability to water in the collecting ducts, a high osmotic pressure in generated in the kidney medulla that draws out water from the renal tubules back to vasa recta. So, the correct option is option B, increases the permeability of collecting ducts to water.
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