THE UTERUS

The =uterus= is a hollow muscular organ, which receives the Fallopian

tubes anteriorly and opens into the vagina posteriorly. It is situated

chiefly in the abdominal cavity, but extends a short distance into the

pelvic cavity. It is attached to the lumbar wall of the abdomen and the

lateral walls of the pelvic cavity by two folds of peritoneum termed the

broad ligaments. It consists of two cornua or horns, the body, and the

neck.

The =cornua= or =horns= of the uterus (Cornua uteri) are situated

entirely in the abdomen. They appear to vary considerably in position;

commonly they are pressed up against the sublumbar muscles by the

intestine (left portions of large colon, small colon, and small

intestine). They are cylindrical, and are about ten inches (ca. 25 cm.)

in length. The anterior extremity of each forms a blunt point which

receives the Fallopian tube. Posteriorly they increase somewhat in

caliber, converge, and unite with the body. The =dorsal= (or attached)

=border= is slightly concave and is attached to the broad ligament. The

=ventral border= is convex and free.

[Illustration:

A text-book of veterinary anatomy · 第 669 / 1619 题