Big and heavy - requires anatomic knowledge (you know there was no Wikipedia showing exactly where that dog carries it’s liver)...
its liver
Thanks! Very important!
You don't need academic knowledge of anatomy if you grow up in a culture (that of medieval peasants) where hunting, cleaning, and cooking animals was likely common. Much can be inferred from analogy, in the way the non-human dissections were (and still are) used for training surgeons.
Many assumptions about the knowledge of the persons who shall apply the guidelines - but might be right.
Probably in the same place as a sheep or a pig. A butcher would have no problem finding it. ;)
Probably. Clearly if you happen to have a butcher at hand to get you the liver. Not sure if nowadays you could just bring a random dig to a butcher and ket him extract the liver for you - might be hygienic standards preventing to do it. Earlier might be the belief that dogs are dirty etc. but i don’t know...