Final answer:
The structures mentioned are all parts of the skull and have different functions.
Step-by-step explanation:
The structure "Pterygoid plate" is located in the skull and forms the lateral wall of the nasal cavity and part of the orbit. It helps provide support and shape to these areas. The pterygomaxillary fissure, also known as the infratemporal fossa, is a space located between the maxilla and the pterygoid process of the sphenoid bone. The maxillary sinus is an air-filled cavity located within the maxilla bone, above the molars and premolars. The zygomatic process of the maxilla is a bony extension of the maxilla that contributes to the formation of the zygomatic arch. The orbital floor is the bony structure that forms the bottom part of the eye socket.