1. Urinary System

2. The urinary system consists of organs that produce and excrete urine from the body. Urine contains waste: mostly excess water, salts and nitrogen compounds. Primary organs are the kidneys Normal adult bladder can store up to.5 liters.

3. The urinary system of the human body consists of: Two kidneys Two ureters Urinary bladder Urethra

4. Kidneys - Introduction Are a pair of bean-shaped, red-brown organs Each is about 4 inches (10 cm) long, 2 inches (5 cm) wide, and 1 inch (2.5 cm) thick Each weighs about 5 ounces (140 g)

5. Function of the Kidneys Main Function: Regulate the volume and concentration of fluids and minerals in the body Remove the waste matter produced by the normal functioning of the body Produce urine

6. Other Functions of the Kidneys: Detoxify harmful substances (e.g. drugs, toxic chemicals) Secrete Hormones that regulate blood pressure and stimulate red blood cell production in the bone marrow.

8. Anatomy of the Kidney (cont.) The functional units of the kidneys are nephrons – about 1.2 million in each kidney – filter the blood – produce a liquid (the filtrate) containing minerals, wastes, and water

9. Urine Urine is the fluid waste excreted by the kidneys. Urine exits the kidney via left and right ureters Is transported to the bladder Leaves body through the urethra