ANATOMY

Detailed explanation-1: -Urine is move down the ureters by means of gravity. Urinary continence is frequently observed in the elderly. Hormones play an important role in regulating the function of the urinary system.

Detailed explanation-2: -Two ureters. These narrow tubes carry urine from the kidneys to the bladder. Muscles in the ureter walls continually tighten and relax forcing urine downward, away from the kidneys.

Detailed explanation-3: -From the calyxes, pee travels out of the kidneys through the ureters (pronounced: YUR-uh-ters) to be stored in the bladder (a muscular sac in the lower belly). When a person urinates, the pee exits the bladder and goes out of the body through the urethra (pronounced: yoo-REE-thruh), another tube-like structure.

Detailed explanation-4: -Under normal circumstances, the peristaltic waves ensure the propulsion of the urinary bolus toward the bladder. As the urine is collected in the renal pelvis, the pelvic pressure increases and initiates a peristaltic contraction that is propagated along the ureter to the bladder.

Detailed explanation-5: -Ureter muscle layers help by way of peristalsis – the involuntary contraction and relaxation of smooth muscle – to propel urine towards the urinary bladder. Gravity also plays a part. The function of the urinary bladder is to store and expel urine.