Olfactory Sulcus (#6)
Starting Point: Most anterior extent of sulcus, near the frontal pole
Direction: Anterior to Posterior
Ending Point: Curve of the sulcus away from midline
Notes: Posterior extent always determined by most posterior extent of the olfactory sulcus as visualized in saggital slice view, and tends to curve away from the midline. Use the inferior axial slice view to determine the anterior extent.