Urethra
Videos
The urethra is the tube that transports urine from the bladder to the urethral meatus of the penis or vulva in placental mammals. In males, it also transports semen through the penis during ejaculatio
The urethra transports urine from the bladder to the outside of the body. This image shows (a) a human female urethra and (b) a human male urethra.
Micrograph of urethral cancer (urothelial cell carcinoma), a rare problem of the urethra.
Male urethral opening on glans penis
Female urethral opening within vulval vestibule
Urination
Videos
Urination is the release of urine from the bladder through the urethra in placental mammals, or through the cloaca in other vertebrates. It is the urinary system's form of excretion. It is also known
Urethra
…it also transports semen through the penis during ejaculation. The external urethral sphincter is a striated muscle that allows voluntary control over urination. The internal urethral sphincter, formed by the involuntary smooth muscles lining the bladder neck and urethra, is innervated by the sympathetic division…
Manneken Pis depicts a urinating boy (puer mingens) in a standing position.
Jeanneke Pis portrays a girl squatting to urinate.
Male placental mammals expel urine through the penis.