Midline projection of posterior aspect of the skull
EOP
First palpable spinous
Axis (C2)
Hyoid Bone & Carotid Artery
C3
Thyroid Cartilage
C4,5
Cricoid Cartilage, Carotid Tubercle & Last Moveable Segment
C6
Vertebral Prominens (70%)
C7
Vertebral Prominens (30%)
T1
Spine of the Scapula
T3
Sternal Angle of Louis
T4,5
Inferior angle of the scapula lying down
T6
Inferior angle of scapula seated
T7
Xiphoid
T10
Umbilicus
L3
Iliac Crest
L4
PSIS
S2