Tuballigation (tubal ligation)
refers to a surgical procedure that blocks the path of the
egg along the fallopian tubes, therfore preventing fertilization
and pregnancy.
We begin by describing the anatomy of the tube.
The fallopian tube is a muscular organ opening into the uterus
and and ending just to the ovary. The fallopian tube captures
the egg from the ovary and moves it into the uterine cavity.
It is the site where fertilization takes place.
The fallopian tube is about 10 cm (4 inches)
long and consists of several segments.
The fimbrial segment sweeps the egg into the
tube when it is released from the ovary.
The infundibular segment is next to the fimbria
and is shaped like the bell of a trumpet.
The ampullary segment is a little narrower and
is the middle portion of the tube.
The isthmic segment is narrower still and is
the segment closest to the uterus.
The interstitial segment tunnels through the
uterine muscle and ends up in the uterine cavity.
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