In a Female Pig, the Vagina and the Urethra Empty

Question

In a female pig, the vagina and the urethra empty into the ________.
A) urinary bladder
B) penis
C) uterine horn
D) urogenital sinus

Accepted Answer

In female pigs, the vagina and the urethra both empty into the urogenital sinus, which is a common opening for the urinary and reproductive systems. The urinary bladder is a separate structure that stores urine, and the uterus connects to the urogenital sinus through the cervix, not directly. And since pigs are not male, they do not have a penis. Therefore, the only correct answer is D, urogenital sinus.