In the fetal pig, the organ attached to the umbilical cord is the urinary bladder. The urinary bladder fills up with urine, which is a liquid waste product produced by the kidneys. This urine collects in the bladder until it is expelled from the body through the urogenital sinus, which is the common opening for both the urinary and reproductive systems in the fetal pig.
1. Organ attached to the umbilical cord: Urinary bladder
2. What it fills up with: Urine
3. Where it empties into: Urogenital sinus, which is the common opening for both the urinary and reproductive systems in the fetal pig
The anus, on the other hand, has its own separate opening through which solid waste, in the form of feces, is expelled from the body.