To understand what you're asking, I need more context. What aspect of a pig's anatomy are you interested in? For example, are you asking about:
* The lateral surface of a pig's body? This would refer to the sides of the pig, excluding the back, belly, and head.
* The lateral muscles of a pig? This would refer to the muscles located along the sides of the pig's body.
* The lateral movement of a pig? This would refer to how a pig moves its body sideways.
Please provide more details so I can give you a helpful answer!