STRUCTURE OF UTERUS

1- The uterus is placed in the cavity of true pelvis.( The true pelvis is short, it is curved canal of pelvis and it is pelvic inlet )

2-The uterus is muscular organ.

3-The uterus is hollow pyriform (pyriform means trigonal) guava shape muscular organ.

4-The uterus is 7.5cm long, 2.5 cm thick,and 5 cm wide at fundus.

5-The weight of uterus is 50 gm ( non pregnant uterus weight)

6-The lower third of uterus is called cervix, it measure 2.5 cm .

7-Each wall of uterus is 1.25 cm.

THE UTERUS IS MADE UP THE FALLOWING PARTS

1-The Body or Corpus

2-The cervix

3-The isthmus

THE BODY OR CORPUS

The body of uterus starting from fundus above to isthmus below. it is upper two-thirds of uterus.and it is 5cm.

THE FUNDUS OF THE UTERUS

The fundus is present above insertion of fellopian tubes and it is dome shape.

THE CORNUA OF THE UTERUS

The fallopian tubes join with the body of uterus and form outer angle is called cornua of the uterus.

CAVITY OF UTERUS

This is present inside of uterus.hallow cavity , triangular shape.

ISTHMUS OF UTERUS

Isthmus is constricted part situated between above body of uterus and below the cervix.it is measuring about 0.5 cm

THE CERVIX OF UTERUS

The cervix is cylindrical shape.its starts from isthmus and ends at the external os. It is measure about 2.5cm

THE INTERNAL OS

The cervix is lower part of uterus which is narrow.internal os situated below the isthmus.and it is internal opening of cervix into cavity of uterus.

THE EXTERNAL OS

The cervical opening into the vagina is called external os.

Between the uterus and bladder there is a pouch formed by peritoneum is called uterovesicle pouch.

The rectouterine pouch of Douglas and the rectum present the posterior part of uterus.

Fallopian tubes,ovaries,and broad ligaments are present lateral side of uterus.

Intestine present upper part of the uterus.

Vagina is present lower part of uterus.