1. Related Anatomy
Unit 16 Urinary System

2. 1. Wastes and Organs Wastes: Water Carbon DiOxide Nitrogens Organs
Urinary System
Lungs
Skin/Sweat
Digestive System
Liver

3. 2. System components Kidneys- produce urine
Urinary Bladder- stores urine and discharge from body

4. 3. Composition of Urine
A fluid containing water, nitrogen wastes, salts and traces of other substances excreted by the kidneys

5. 4. Regulation of Urine
Hormones (Pituitary gland and ADH hormone)regulate to maintain blood and fluid volume levels.

6. 5. Function of Kidneys
The kidneys remove wastes and extra water from the blood to form urine. Urine flows from the kidneys to the bladder through the ureters.
Every day, your kidneys process about 200 quarts of blood to sift out about 2 quarts of waste products and extra water. The waste and extra water become urine, which flows to your bladder through tubes called ureters. Your bladder stores urine until you go to the bathroom.

7. Kidneys
The actual filtering occurs in tiny units inside your kidneys called nephrons. Every kidney has about a million nephrons. In the nephron, a glomerulus—which is a tiny blood vessel, or capillary—intertwines with a tiny urine-collecting tube called a tubule. A complicated chemical exchange takes place, as waste materials and water leave your blood and enter your urinary system.

8. 6. Process of Urination
Urination, also called micturition, is the process of disposing of urine  from the urinary bladder ( A membranous sac for temporary retention of urine ) through the urethra duct through which urine is discharged. 
The process of urination is usually under voluntary control. When control over urination is lost or absent, this is called urinary incontinence

9. 7. Fluid Compartments 2/3 intracellular 1/3 extracellular
( CSF, blood, lymph)
Osmotic pressure keeps fluids in balance

10. 8. Electrolyte
Compounds in fluids such as salts, acids, bases that form ions
Results in pH
Sodium
Potassium
Calcium
Phosphate
Chlorine
Magnesium

11. 9. Sodium and Potassium Na Nerve and muscle function
Low= headache, low BP, rapid pulse
High- thirsty K
Nerve and muscle function pH
Fluid balance
Low- cramps, fatigue, confuse, irregular heart beat

12. The End