Which color line indicates the pterygoid maxillary fissure?

• A. Green Line
• B. Red Line
• C. Purple Line
• D. Light Blue Line

Answer: (A)

The pterygomaxillary fissure is the gap between the maxilla and the pterygoid process that connects the infratemporal fossa with the pterygopalatine fossa. In color-coded anatomy diagrams, this fissure is depicted along the lateral wall of the maxilla where it meets the pterygoid plate. The green line follows that boundary, matching the path of the fissure through which vessels and nerves pass from the infratemporal region into the pterygopalatine fossa. Other color lines typically mark different openings or boundaries (such as the anterior position of the inferior orbital fissure or the locations of the sphenopalatine foramen or foramen rotundum), so they don’t align with the pterygomaxillary fissure.