can clarify all the sinus through the development and one which is.. position back front 35 degrees toward the foot

can clarify all the sinus through the development and one which is:
1- Lateral position of the head
2- the situation back in front of me at an angle of 45 degrees head with a base line to open the patient's mouth
3- position back front 35 degrees toward the foot
4- the situation back in front of me at an angle of 35 degrees toward the head