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Ureters
2 narrow muscular tubes about 12.5 cm long and 5 mm wide through
which urine passes from the kidneys to the bladder. Urine is forced
toward the bladder by peristalsis.
Bladder
Your muscular reservoir of urine. Waste from
the kidneys, empties via the ureters into the bladder. Once the
bladder is full, you pee, releasing the urine through the urethra
to the outside of the body.
Male urinary tract
In the male, the bladder drains into the urethra,
which passes through the prostate. Within
the prostate the spermatic duct joins the urethra. The urethra then
travels through the penis and opens to the outside of the body through
the urethral orifice, a small opening
at the tip of the penis.
Female urinary tract
In the female, the bladder lies in front of (anterior to) the vagina.
The bladder empties into the urethra
which travels a couple inches to the vulva where it opens to the
outside of the body through the urethral orifice,
a small opening just anterior to the vaginal orifice.
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