Leah James and Nathan Umbarger

1. Leah James and Nathan Umbarger

2. Kidneys • Bean shape structures behind abdominal wall that are 4-5 inches long • Three main regions: cortex, medulla, and sinus • The cortex and medulla contain nephrons which form urine • In the sinus are minor and major calyces that collect urine from papillary ducts and deliver to ureters • Filters waste that would otherwise be toxic to cells

3. Ureters • Ureters are long muscular tubes that transport the urine from your kidneys to your bladder • The ureters are critical organs to the urinary system • They are about 8 to 10 inches long • Located at the central portion of each kidney

4. Urinary bladder • Urinary bladder is a hollow muscular organ that stores urine • The inferior part of the bladder contains three openings that form a triangle called the trigone • The two posterior openings are called the ureteral openings • In an average adult human the bladder can hold up to 1/3 of a quart of urine • Found in most vertebrates other than birds

5. urethra • Urethra is a tube like structure that carries urine from the urinary bladder to the outside of the body • Urethra sizes differ between males and females

6. Sources cited • http://urinarybladder.org/ • http://www.news-medical.net/health/Urethra-What-is-the-Urethra.aspx • http://www.webmd.com/urinary-incontinence-oab/picture-of-the-kidneys • http://emedicine.medscape.com/article/1949127-overview