Reproductive Anatomy Female Rat Figure 3a

Figure 3a: Diagram of female rat reproductive anatomy

 Diagram

Diagram depicts:

Ovaries

The ovaries are located at the distal end of the uterine horns near the kidneys. The oviducts connect the ovaries to each horn of the uterus. The ovaries produce the ova, also called the egg, and certain hormones.

Uterus

Rats have a uterus consisting of the right and left cornua (horns) referred to as a bicornuate uterus. This structure enables the rat to have multiple offspring. The horns of the uterus come together to form the vagina.

Cervix

Each uterine horn has its own cervix. The cervixes are located where the uteri connect to the vagina. Each cervix has strong thick walls.

The opening of the cervix is very small but expands to allow birth. Its purpose is to protect the uterus. See: “insert” in diagram above.

Vagina

The vagina is the short muscular canal that leads from the female rat’s uterus to the outside of the body. It lies below the urethra. The vaginal walls are lined with mucous membranes which keep it protected and moist. The vagina serves as the birth canal and also as the orifice for the acceptance of sperm during mating.

Consultant: Anthony Pilny, DVM, DABVP
Artist: Joanne “Bella” Hodges

Cross-references

Linked from

  • Spay 

Disclaimer

The Rat Guide and its affiliates accept no responsibility for misuse or misunderstanding of its information. This guide in whole or part, exists solely for the purpose of recognizing and understanding the care and illnesses in the pet rat. Please seek advice and treatment from a qualified Veterinarian if your rat is ill.

2000 - 2021 by Karen Grant RN. All rights reserved.
All other written and visual materials used by permission of specific authors for the sole use of the Rat Guide. Please visit our Privacy Policy for details.
Brought to you by KuddlyKorner4u
See Logos page for linking to the Rat Guide.
Contact us here: Rat Guide Team
Please note: Rat Guide email is not checked daily. Send e-mail to if you have an urgent medical problem with your pet rat. When possible, it is always best to take your rat to a qualified rat veterinarian.