ANATOMY

Detailed explanation-1: -The urine passes from the kidneys through the ureter into the urinary bladder, where it is stored.

Detailed explanation-2: -The bladder stores urine, allowing urination to be infrequent and controlled. The bladder is lined by layers of muscle tissue that stretch to hold urine. The normal capacity of the bladder is 400-600 mL. During urination, the bladder muscles squeeze, and two sphincters (valves) open to allow urine to flow out.

Detailed explanation-3: -The center part of the kidney, the medulla (meh-DUH-luh), has fan-shaped structures called pyramids. These drain urine into cup-shaped tubes called calyxes (KAY-luh-seez). From the calyxes, pee travels out of the kidneys through the ureters (YUR-uh-ters) to be stored in the bladder (a muscular sac in the lower belly).

Detailed explanation-4: -The bladder is a balloon-shaped muscle that serves as the storage pouch for urine. Urine is made in the kidneys and flows from them to the bladder through the ureters. From the bladder, urine flows through the urethra to the outside of the body.