Atlas of Acupuncture

3 Anatomical Orientation

Nasolabial groove (
Fig. 3.21)

The nasolabial groove begins lateral to the nose and superior to

the ala nasi, at the junction of the cartilage and the bone. From

there it runs to the corners of the mouth. 
Ex-HN-8(shang-

yingxiang, bitong) is located at its upper end, at the junction of

the upper jaw and the nasal cavities. 
L.I.-20is located slightly

below bitong, between the lateral border of the side of the nose

and the nasolabial groove.

3.1.3 Lower Face and Chin

Mandibular angle (
Fig. 3.22)

The mandibular angle corresponds to the area where the lower

jaw line changes its direction from horizontal to vertical. It is

located markedly inferior and anterior to the ear lobe. This angle

marks the location of 
ST-6 (1 finger-width anterior and

superior to the mandibular angle) as well as of 
S.I.-17and


T.B.-16 (level with the mandibular angle).

Maxilla

(upper

jaw)

L.I.-20

Ex-HN-8

(bitong) Nasolabial groove

S.I.-17 Sternocleidomastoid

T.B.-16

ST-6

ST-5

Masseter

S.I.-18

Zygomatic bone

Man-

dibular

angle

Fig. 3.21

Fig. 3.22