Represent the order of passage of salts and water in the Nephron, with a
flow chart.
Answers
Explanation:
Harold C. SchottII, J. Brett Woodie, in Equine Surgery (Fourth Edition), 2012
Histology
The functional unit of the kidney is the nephron. Each nephron is composed of a renal corpuscle (glomerulus within Bowman's capsule), a proximal tubule (convoluted and straight components), an intermediate tubule (loop of Henle), a distal convoluted tubule, a connecting tubule, and cortical, outer medullary, and inner medullary collecting ducts.1,2 A study of kidney organogenesis using unbiased stereological techniques found that the equine left kidney contains approximately 10 million glomeruli (for a total of 20 million in both kidneys) and, as in other species, the total number of glomeruli do not increase after birth despite continued growth of the kidney (with increasing glomerular size) until about 1 year of age.6 Histologically, equine nephrons are similar in most respects to those of other mammalian species; however, the diameter and epithelial height of the collecting duct segments are comparatively larger. In addition, the equine macula densa (segment of the ascending loop of Henle that lies in close association with the juxtaglomerular apparatus of the afferent arteriole) appears more prominent than that of other mammals.7 Whether these subtle histologic differences are accompanied by functional differences has not been investigated.