Human Excretion

• Homeostasis : the regulation of a stable, internal environment
• • Blood from the heart enters the kidneys through the renal arteries.
  • It is forced into the tiny capillaries until it enters the glomerulus. Filtrate (the stuff that gets squeezed out of the glomerulus) goes into the Bowman's capsule.
  • Then into the proximal convoluted tubule.
  • Organic solutes are reabsorbed in the proximal convoluted tubule.
  • Filtrate then enters the Loop of Henle. 
• • Renal arteries
  • Capillaries
  • Glomerulus
  • Bowman's capsule
  • Proximal Convoluted Tubule
  • Loop of Henle
• Loop of Henle is where most of the reabsorption happens
• Descending part of the Loop of Henle's membrane is highly permeable to water

  (the starting part)
• The Loop of Henle reabsorbs water
• Distal Convoluted Tubule : used for slight adjustments to absorption
• Define Excretion :

  the removal of waste substances of metabolic reactions, toxic materials and substances in excess of requirements