Maxillary nerve approach in the Pterygopalatine fossa , by sensitive stimulation;  possible answers.     
A: First direction of the needle (perpendicular) which will butt against the sphenoidal wing
B: Second orientation of the needle : caudal and medial.

Sphenoidal ala -
2 and 3 - Cutaneous answer type zygomatic zone: too much lateral -
4  and 5 - Intra-oral answer (pharyngeal and palatine), too medial
6 - Answer  superior teeth: good answer
7 - Answer to upper lip and ala of the nose: good answer.