where is the male urethra

The urethra is the tube that leads from the bladder to the outside of the body. The male urethra is slender, about 18cm long. It starts from the internal urethral opening of the bladder and goes up to the external urethral opening. It passes through the prostate, membranous and cavernous bodies during its journey. The male urethra has the functions of both urination and semen. The male urethra has a sphincter composed of circular striated muscles in the membranous part of the urethra, called the external urethral sphincter, which is controlled by consciousness.

The male urethra maleurethra is both the urinary tract and the semen duct. It starts from the internal orifice of the urethra and ends at the external urethral orifice at the tip of the head. It is about 18 cm long in adults. It can be divided into three parts: the prostatic part (the part that passes through the prostate), the membranous part (the part that passes through the urogenital diaphragm, about 1.2 cm long) and the cavernous part (the part that passes through the corpus spongiosum of the urethra). Clinically, the prostate part and the membranous part are called the posterior urethra, and the cavernous part is called the anterior urethra.

There are three strictures and two bends in the male urethra. The three strictures are the internal urethral orifice, the membranous part, and the external urethral orifice. The two curves are located below the pubic symphysis and anteriorly and below the pubic symphysis.

The male urethra (maleurethra) is both the urinary tract and the semen discharge duct. It starts from the internal orifice of the urethra and ends at the external urethral orifice at the tip of the head. It is about 18 cm long in adults. It can be divided into three parts: the prostatic part (the part that passes through the prostate), the membranous part (the part that passes through the urogenital diaphragm, about 1.2 cm long) and the cavernous part (the part that passes through the spongy body of the urethra). Clinically, the prostate part and the membranous part are called the posterior urethra, and the cavernous part is called the anterior urethra. Urethral glands are scattered throughout the urethra, mainly concentrated in the anterior urethral cavernous body. They are called paraurethral glands. They can be squeezed during erection and secrete clear mucus to lubricate the surface of the urethral mucosa. In cases of chronic infection, they actually secrete sticky threads.