Ureters

Definition

Ureters are muscular tubes that transport urine from the kidneys to the bladder. They play a crucial role in the urinary system by facilitating the excretion of waste products from the body.

5 Must Know Facts For Your Next Test

1. Ureters are approximately 25-30 cm long and have a diameter of about 3-4 mm.
2. Each kidney has one ureter that exits at the renal pelvis and enters the bladder at an oblique angle.
3. The peristaltic contractions of the ureter walls help propel urine towards the bladder.
4. Obstruction or damage to the ureters can lead to serious renal complications, including hydronephrosis.
5. Dietary factors, such as high sodium intake, can influence the formation of kidney stones which may obstruct the ureters.

Review Questions

• What is the primary function of the ureters in the urinary system?
• How do peristaltic contractions aid in the function of ureters?
• What potential complications can arise from obstruction or damage to a ureter?

Related terms

Kidneys: Organs that filter blood to produce urine, which is then transported by ureters to the bladder.

Bladder: A hollow muscular organ that stores urine before it is excreted from the body.

Hydronephrosis: A condition characterized by swelling of a kidney due to a build-up of urine caused by an obstruction.