Final answer:
The space distal to upper laterals and distal to lower canines is called the infratemporal fossa, located on the lateral side of the skull. It contains muscles involved in chewing.
Step-by-step explanation:
The space described as "distal to upper laterals and distal to lower canines" is called the infratemporal fossa. It is located on the lateral side of the skull, below the level of the zygomatic arch and deep to the ramus of the mandible. The infratemporal fossa contains muscles that act on the mandible during chewing.