VGO-0033
QUESTION
Ovulation fossa is in the ovary of?
OPTIONS
(A) Cow
(B) Bitch
(C) Sheep
(D) Mare
ANSWER
(D) Mare
EXPLANATION
The mare's ovary has an unusual arrangement in which most follicular tissue lies internally and ovulation occurs only at the ovulation fossa. Cows, sheep, and bitches have the more typical ovarian organization, allowing follicles to ovulate from the ovarian surface. The specialized fossa is therefore a characteristic equine anatomical feature rather than a general structure of domestic mammalian ovaries.
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Veterinary Gynaecology and Obstetrics · 240 Questions
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