Question

Provide a list of all structures that glomerular filtrate will pass through from the time it leaves the bloodstream in the glomerular capsule to the time it leaves the body. Ensure that your structure list is in order.

Answer 1

Answer

The process of urine formation occurs in three steps :

• Filtration
• Reabsorption
• Secretion

In the process of filtration, water along with small molecules such as ions, nutrients, nitrogenous waste products are filtered out of glomerulus capillaries into the Bowman's capsule.

The fluid that enters glomerular capsule is called filtrate.

The pathway for glomerular filtrate in order is :

1. Glomerular capsule
2. Proximal convoluted tubule
3. Descending limb of loop of Henle
4. Ascending limb of loop of Henle
5. Distal convoluted tubule
6. Collecting duct
7. Renal papilla
8. Minor calyx
9. Major calyx
10. Renal pelvis
11. Ureter
12. Urinary bladder
13. Internal urethral sphincter
14. Urethra
15. External urethral sphincter
16. External urethral orifice -----> Out of the body

At the end of collecting duct, when this fluid enters renal papilla, it is called urine.