QS Study

Peritoneal reflection of the uterus

The uterus is a secondary sex organ. It is an organ of the female reproductive system. Secondary sex organs are components of the reproductive tract that mature during puberty under the influence of sex hormones produced from primary sex organs.

The peritoneum is reflected on the posterior surface of the upper part of the vagina from the rectum and covers the supravaginal part of the cervix, then the body of the uterus and fundus of the uterus. The peritoneal reflection is an anatomical term that defines a place or a point. It is an “apron” that covers the intestines, etc. that is comprised of fat and lymph nodes. The reflection is the “waist” or middle of the apron.

Fig – Peritoneal reflection of the uterus

The pelvic peritoneal space is the inferior reflection of the peritoneum over the fundus of the urinary bladder and the front of the rectum at the junction of its middle and lower thirds. In females, the reflection is also over the anterior and posterior surface of the uterus and the upper posterior vagina. It then descends and covers the anterior surface of the fundus and body up to the isthmus. Then the peritoneum reflects on the superior surface of the urinary bladder. The layers of peritoneum on the anterior and posterior surfaces of the uterus are reflected laterally to the pelvic side walls as the broad ligaments, containing the fallopian tubes.