This is the endpoint of the urinary system .
This tube, the urethra, connects the bladder to the outside of the body.
Control of excretion of urine is through the urethral sphincter.
Male: The urethra also has a role in sexual reproduction because the function
of the urethra is a passageway for semen.
Is about 8 inches long and travels from the bladder and opens at the end of the penis.
There is a spiral groove found inside the urethra
This allows the urine a larger or wider stream flow.
There are 4 main parts
1.) Pre-prostatic urethra
2.) Prostatic urethra
3.) Membranous urethra
4.) Spongy or Penile Urethra