terus - Species difference

UTERUS
( Ewe, Doe, Mare, Sow, Bitch, Rabbit )

Species difference

Ewe and Doe

  • The uterus resembles that of the cow. The horns are four or five inches long (Click here for the image)
  • The junction of the uterine horns with the fallopian tubes shows no clear distinction. They are coiled in a close spiral.
  • The body is less than an inch long.
  • The cotyledons are much smaller than those of the cow and have a depression on their free surface.
  • The cervix is about an inch and a half long.
  • The lumen of the cervix is closed by reciprocal prominences and depressions of the mucous membrane.
  • The external urethral orifice is in the ventral part of the vagina

Mare (Click to see the Uterus)

  • The body is situated partly in the abdomen and partly in the pelvis; it is 18 to 20 cm long
  • The cornua are 25 cm long and curved, the ventral border being convex. They are situated entirely in the abdomen
  • The junction of the oviduct and horn is abrupt.
  • The cervix is 5 to 7.5 cm long and the cervical canal is straight
  • The mucous membrane has no cotyledons

Sow (Click here for the image)

  • The body is only 2 inches long
  • The horns are extremely long and flexuous and freely movable due to the large extent of broad ligaments
  • In non-pregnant animals, they are arranged in numerous coils like small intestine
  • The extremities of the horns taper to the size of the fallopian tubes
  • The neck has remarkable length
  • The fornix is absent

Bitch (Click here for the image)

  • The body is very short about 2 to 3 cm long and the cornua are very long, (12 to 15 cm) straight and are situated in the abdomen
  • They diverge from the body in the form of V-shape towards the kidneys. The neck is very short
  • The horns are not tapered gradually
  • The round ligaments are passing into the inguinal canal enveloped by a peritoneal pouch called processus vaginalis
  • The gravid uterus is abdominal and extends to the stomach and liver
  • Cotyledons are absent

Rabbit

  • The right and left uterus is separated for their entire length
  • The uterus has a small body and long tubular horns. The length of the horn may be one meter and presents numerous U shaped coils
  • The cervix is elongated and presents rounded prominences within the lumen. This arrangement helps in forming interdigitation and provides better occlusion during necessity
  • The wall of the cervix is continuous with that of vagina and there is no cervical projection within the vagina
Last modified: Saturday, 21 April 2012, 6:11 AM