Key structures that may be visible in the nasal zones:
ZONE
POSSIBLE KEY ANATOMY*
N1 Radix
Procerus m.
Dorsal nasal a
Intercanthal a.
N2 Rhinion
Dorsal nasal a.
Nasalis m.
N3 Nasal Tip
Lateral nasal a.
Branches of latreral nasal and columelar a.
Nasalis m. (alar part)
*The structures that can be identified in each zone are subject to variation based on probe footprint, resolution and individual anatomical variability.