You have been asked to place a naso-gastric tube into an awake patient who is vomiting blood. Knowing the anatomy of the nasal cavity and nasopharynx, what direction do you point the tube as you enter the nares?

Superiorly.

Straight back and slightly inferior.

Correct. Straight back and slightly inferior, because you want the tube to follow the the lower edge of the inferior concha of the nasal tubinates to the nasophaynx.