Urethra

Definition

The urethra is a tubular structure that carries urine from the bladder to the outside of the body. It plays a crucial role in the excretory system by facilitating the elimination of waste.

5 Must Know Facts For Your Next Test

1. The female urethra is approximately 4 cm long, while the male urethra is about 20 cm long.
2. In males, the urethra also serves as a passage for semen during ejaculation.
3. Urethritis is an inflammation of the urethra often caused by bacterial infection.
4. A healthy diet and proper hydration can help maintain urethral health and prevent infections.
5. Obstruction or narrowing of the urethra can lead to urinary retention and requires medical intervention.

Review Questions

• What are the primary functions of the urethra?
• How does the length of the urethra differ between males and females?
• Why is proper hydration important for maintaining urethral health?

Related terms

Bladder: A muscular organ that stores urine before it is excreted through the urethra.

Urethritis: Inflammation of the urethra usually caused by infection.

Urinary Retention: An inability to completely empty the bladder, often due to blockage or weakening of muscles.