Excretion And Elimination Of Toxicants And Their Metabolites
Beginning of paper
The first topic that was covered by this chapter was the excretion of wastes
by the Renal system. The first step that occurs in the kidney deals with the
nephron, which is the functional unit of the kidney. In the glomerulus the
formation of urine begins with the passive filtration of plasma thro ....
Middle of paper
.... to 90% of reabsorbtion occurs in
these structures. Active reabsortion is used to recapture glucose, proteins,
amino acids and other nutrients. Water and chloride ions are passively
reabsorbed by the establishment of osmotic and electrochemical gradients. Both
the Loop of Henley and collecting duct are used to establish these osmolar
gradients. The tubule has a brush border that will absorb proteins and
polypeptides through pinocytosis. These molecules are sometimes catabolised and
converted ....
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Word count: 1076
Page count: 4 (approximately 250 words per page)
