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英文字典中文字典相關資料:
  • Urethra: Location, Anatomy, Function Conditions - Cleveland Clinic
    The urethra is a passageway located in your body’s pelvic region The walls of the tube are thin and made up of epithelial tissue, smooth muscle cells and connective tissue The urethra has two different types of sphincters, or muscles that act as valves that open or close
  • Urethra - Wikipedia
    The urethra is the vessel through which urine passes after leaving the bladder During urination, the smooth muscle lining the urethra relaxes in concert with bladder contraction(s) to forcefully expel the urine in a pressurized stream
  • The Urethra - Male - Female - Anatomical Course - TeachMeAnatomy
    The urethra is the vessel responsible for transporting urine from the bladder to an external opening in the perineum It is lined by stratified columnar epithelium , which is protected from the corrosive urine by mucus secreting glands
  • Urethra: Anatomy, Function, and Treatment - Verywell Health
    The urethra is a tube through which urine exits the body The urethra is shorter in females and opens between the clitoris and vagina In males, the urethra is longer, passing through the shaft of the penis and opening at the tip of the penis
  • Urethra | Definition, Function, Facts | Britannica
    Urethra, duct that transmits urine from the bladder to the exterior of the body during urination The urethra is held closed by the urethral sphincter, a muscular structure that helps keep urine in the bladder until voiding can occur
  • Urethra - Anatomy, Diagram, Structure, Function, Location
    The urethra is a vital structure in the urinary system, differing significantly in length, structure, and surrounding anatomy between males and females [4] It consists of specialized tissue layers that support its role as a conduit for urine (and semen in males)
  • Urethra - Definition, Function and Structure - Biology Dictionary
    The urethra is a hollow tube positioned between the urinary bladder and urinary meatus which takes urine stored in the bladder out of the body Urethra length differs in human females and males In males, the urethra allows for the expulsion of both urine and semen Internal and external urethral sphincter muscles control micturition





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