PP

 Every cell in the body produces metabolic waste.  The skin, lungs, and kidneys make up this system.

 Excretes water, salts, small amounts of nitrogenous wastes

 Excrete water vapor and CO2

 Formation and excretion of urine  Mostly water to keep wastes dissolved and easier to excrete (nitrogenous waste).

 Formation and excretion of urine

 Mostly water to keep wastes dissolved and easier to excrete (nitrogenous waste).

 blood forced into kidneys to clean out urea (created in liver), toxins, mineral salts, and water to from urine.

 Some substances return to blood to maintain balance (through vena cava/vein)

 Urine passes through the ureters to be stored in bladder until it is secreted through the urethra

 Normally made of urea, water, salt and has a very light yellow color

 Proteins may leak into the urine if the kidney is damaged

 Too dark in color indicates dehydration

 Proteins may leak into the urine if the kidney is damaged  Too dark in color indicates dehydration  Brown color indicates bleeding from the kidneys

 Proteins may leak into the urine if the kidney is damaged  Too dark in color indicates dehydration  Brown color indicates bleeding from the kidneys  Urine will have a high glucose count if the individual is diabetic

 Proteins may leak into the urine if the kidney is damaged  Too dark in color indicates dehydration  Brown color indicates bleeding from the kidneys  Urine will have a high glucose count if the individual is diabetic  Low or no glucose indicates hypoglycemia, which results from too much insulin

 Class Work: Dig/Exc Review WS  HW: SG # and Urinalysis Pre Lab MUST BE DONE IN ORDER TO DO LAB!!