Final answer:
Urethropexy is a surgical fixation of the urethra, which is essential for urine transport from the bladder to the exterior. The structure and function of the urethra differ between genders, with a longer male urethra that also carries semen, and a shorter female urethra positioned such that UTIs are more common.
Step-by-step explanation:
The term urethropexy refers to a surgical procedure in which the urethra is fixed, typically to stabilize it and correct issues such as urinary incontinence. The urethra is a vital anatomical structure that transports urine from the bladder to the outside environment, with its role and structure varying slightly between genders. In females, the urethra is shorter and embedded in the anterior vaginal wall, making women more susceptible to urinary tract infections (UTIs) due to its proximity to fecal bacteria.
In males, the urethra is longer, and it also transports semen. Both genders have an internal urinary sphincter, controlled by the autonomic nervous system, and an external sphincter that provides voluntary control over urination. Transitional epithelium lines the proximal urethra, while the terminal portion is lined with nonkeratinized, stratified squamous epithelium. A male urethra also has a section of pseudostratified columnar epithelium.