Parotid duct
Middle third of a line drawn between tragus notch and middle of philtrum
Parotid gland
Superior - inferior border of zygomatic arch
Inferior - line from mastoid to greater cornu of hyoid
Anterior - posterior surface of master
Posterior - EAM/mastoid/anterior border SCM
Surface anatomy of lung issues
Oblique
- spinous processes of T2 —> six costal cartilage
Right lung horizontal fissure
- fourth rib