The urinary system filters waste from the blood and removes it from the body as urine. It includes the kidneys, which filter blood and remove waste as urine, ureters that carry urine from the kidneys to the bladder, the bladder that stores urine, and the urethra through which urine exits the body. The kidneys contain nephrons, the basic functional units that filter blood and regulate water and electrolyte balance by selectively reabsorbing useful substances and secreting waste products into urine.

1. Urinary System
By: Mr. Nikko Lorenz Lawsin

2. General Functions of Urinary System
Filtration
Urine Formation (Removal of Nitrogenous
Waste)
Reabsorption of Water, minerals, elements
and compounds

3. Urinary Tract Functions
1. Kidney - Bean-shaped organ which
filters the blood and collect all
nitrogenous wastes.
- This is made possible with
Nephrons, a fundamental and
functional unit of this system
2. Ureter - Tubular structure that serves as
the passageway of urine
3.Urinary
Bladder
- Sac-like structure which serves
as temporary storage of urine
4. Urethra - Opening which the urine is
released.
Components of Urinary System

4. Nephrons
Basic functional unit of
kidney
1.Bowman’s Capsule –
receives blood
2.Glomerulus – filters the
blood, and almost
absorbs 15% Water

5. Nephrons
 Proximal Convoluted
Tubules – absorbs all
glucose, fatty acids and
glycerols, most enzymes,
elements, hormones and
necessary salts.
 Distal Convoluted Tubules
– delivers the urea that is
collected along filtration
go to the collecting duct

6. Nephrons
 Collecting Duct –
receives the urea and
delivers it into the ureter.
 Capillaries – this is where
all reabsorbed nutrients
will deliver back to
circulatory system.