Parts of Uterus

 Parts of Uterus

1. Body or Corpus 

2. Isthmus

3. Cervix

1. Body or Corpus

Fundus; Uppermost part, widest part of uterus.

Lie above opening of uterine tube.

It connects to fallopian tube.

Body lie between the opening of uterine tube and isthmus 

Corpus where fertilized egg implant during pregnancy.

2. Isthmus

Constricted part, between body and cervix (0.5cm).

Below internal OS lie between corpus and cervix (narrow part of uterus).

3. Cervix

Mainly composed of fibrous connective tissue.

Cervix open to vagina.

Extends from isthmus and ends at external OS.

Cervix

Supravaginal; cervix  part lying above vagina called supravaginal.

Vagina cervix; cervix part lies within vagina called vaginal cervix.

Body Cavity

Triangular shape, there is no Ccavity in fundus.

Length of uterine cavity; 6.5-7cm

Cervical canal is fusiform (spindle) and measure 2.5cm