Question

Length of female urethra is
A. 15cm
B. 10cm
C. 4cm
D. 2cm

Answer 1

Urethra is a part of the human excretory system along with a pair of kidneys, ureter and urinary bladder. Its tube arises from the urinary bladder and helps in to discharge urine out of the human body. The length of urethra is different in human males and in human females.

Complete answer:
In both male and females, urethra is a thin, fibro-muscular tube. It originates at the lower opening of the urinary bladder and extends through the pelvic and urogenital diaphragms to the outside of the body. It opens outside through urethral orifice. There is a sphincter present at the upper end of the urethra. This sphincter closes the passage and keeps the urine inside the bladder before micturition. The length of the urethra is shorter in females than in male.
In females it is 4 cm in length and 6 mm in diameter. It begins in the urethral orifice of the bladder and is embedded in the anterior wall of the vagina. In males urethra needs to traverse the entire length of the penis, so it is longer in males. In males, it is about 20 cm in length.
Urethra in females has only one purpose that is excretion of urine. Whereas in male it serves two functions. Urethra acts as the common route for the discharge of sperms during sexual activities and discharge of urine during micturition.

So, option C. 4 cm is the correct answer.

Note: Urethra is a thin muscular tube that arises from the urinary bladder and its function is to discharge urine out of the body in both human male and females. The length of urethra is short in females as compared to males.