Question

Trace the path of filtrate (i.e. the fluid which eventually becomes urine) through the tubule of a nephron, through the rest of the kidney, and into the bladder.

Answer 1

Answer

Filtrate is the fluild that enters the Bowman's capsule from glomerular capillaries through the filtration membrane.

Filtrate becomes urine when it enters terminal part of the collecting duct or the papillary duct.

Pathway :

1. Bowman's capsule
2. Proximal convoluted tubue
3. Descending limb of Henle's loop
4. Ascending limb of Henle's loop
5. Distal convoluted tubule
6. Collecting duct  
7. Papillary duct (ducts of Bellini) the filtrate becomes urine
8. Renal papilla
9. Minor calyx
10. Major calyx
11. Renal pelvis
12. Ureter
13. Urinary bladder

From urinary bladder, as micturition reflex is initiated, urine moves down through internal urethral sphincter into the urethra and through external urethral spincter and external urethral orifice out of the body.