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Nephron loop
| Question | Answer |
|---|---|
| Proximal convoluted tubule | reabsorbs 2/3 Na and H2O reabsorbs all glucose and amino acids reabsorbs bicarbonate, potassium, phosphate and calcium secretes ammonia and creatine |
| Bowmans Capsule | filtrate small solutes from blood |
| Ascending loop | Salts are reabsorbed into blood Filtrate becomes dilute |
| Descending loop | Permeable to water not salts Filtrate becomes concentrated |
| Distal convoluted tube | selective reabsorption of Na+and Ca+2 Secretes K+ H+ Fine tunes ion balance & pH |
| Collecting ducts | Final water reabsorption (regulated by ADH) Urea recycling Determines Final Urine Concentration |