Atlas of Acupuncture

3.1 Head

Masseter muscle (
Fig. 3.23)

By firmly clenching the jaw, the contours of the masseter

muscle become well defined, stretching from the lateral aspect

of the lower jaw to the zygomatic bone. It originates at the zygo-

matic arch (
Fig. 3.15) and inserts at the mandibular angle

(
Fig. 3.22).

Mentolabial groove (
Fig. 3.24)

This forms a transverse groove at the junction of the chin and the

lower lip. 
Ren-24is located in its centre.

Masseter

ST-6

ST-5

S.I.-18

Mentolabial groove Ren-24

Fig. 3.23

Fig. 3.24