Nephron

Bowmans capsule

Filtrate received from the blood in the glomerulus passively enters the tubule here.

Glomerulus

Responsible for filtering blood

Proximal tubule

65% of water is reabsorbed

65% of ions are reabsorbed

100% of amino acids are absorbed through active transport

Loop of Henle

the part of a kidney tubule that forms a long loop, from where water and salts are resorbed into the blood

Loop of henle (descending)

Water flows out of the tube and into the

blood via the peritubular capillaries by

osmosis.

Loop of Henle (ascending)

Chloride and sodium ions are actively

transported into the peritubular capillaries.

Walls are impermeable to water.

Distal tubule

It reabsorbs sodium, chloride, and water, helping to regulate electrolyte balance and blood pressure

Secretion : It also secretes certain substances, such as potassium and hydrogen ions, into the urine.

Collecting duct

Usually impermeable to water but becomes more permeable in the presence of ADH for water reabsorption back into the blood.

• Filtrate is now urine and will pass into the ureter for storage in the bladder.