3.1 Head
3.1.1 Vertex, Forehead and
Supraorbital RegionVertex (Figs 3.1, 3.2)
Du-20(baihui) is located at the junction of the cranial mid-
line and an imaginary line connecting the apices of the ears.
This point is at a distance of 5 cun from the anterior hairline and
7 cun from the posterior hairline, marking the highest point of
the cranium (‘vertex’).
Please note: When locating Du-20, the patient’s head should be
in an upright position. Spreading hands technique (after König
and Wancura, Chapter 2): Place the hands on the lateral
aspects of the patient’s head, with the little fingers touching the
apices of the ears. The thumbs are then joined at the cranial mid-
line and will be pointing to Du-20(baihui).3 Anatomical Orientation
Ulrich MärzDu-20Ex-HN- 1
(sishencong)Cranial
midline
(‘vertex’)Line connecting the
apices of the earsCoronal sutureParietal boneSagittal sutureFrontal
eminenceVertex
Occipital boneDu-20Fig. 3.1
Fig. 3.2
Du-205 cunApex of
the earApex of
the ear
Fig. 3.3