Male urethra

Male Urethra

The Male Urethra is a tube that connects the urinary bladder to the penis, allowing for the expulsion of urine from the body. In males, the urethra also serves as a conduit for semen and sperm during ejaculation.

Anatomy

The male urethra is approximately 20 cm long and is divided into four parts: the preprostatic urethra, the prostatic urethra, the membranous urethra, and the spongy or penile urethra.

Preprostatic Urethra

The preprostatic urethra is the segment of the urethra that extends from the internal urethral orifice of the bladder to the prostate gland.

Prostatic Urethra

The prostatic urethra is the portion of the urethra that traverses the prostate gland. It is the widest and most dilatable part of the male urethra.

Membranous Urethra

The membranous urethra is the shortest, least dilatable, and most vulnerable part of the urethra. It extends from the apex of the prostate to the bulb of the penis.

Spongy Urethra

The spongy urethra, also known as the penile urethra, is the longest part of the male urethra and extends from the bulb of the penis to the external urethral orifice at the tip of the penis.

Function

The primary function of the male urethra is to transport urine from the bladder out of the body. In addition, the urethra serves as a conduit for semen and sperm during ejaculation.

Clinical Significance

The male urethra can be affected by various conditions, including urethritis, urethral stricture, and urethral cancer. Treatment for these conditions may involve medication, surgery, or other interventions.

See Also

• Urinary system
• Prostate gland
• Urethritis
• Urethral stricture
• Urethral cancer

Male urethra Resources
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