4.7 The Bladder Channel System – Foot taiyang(zu tai yang jing luo)
Location
On the lateral aspect of the foot, distal to the tuberosity of the 5th
metatarsal bone.
How to find
When palpating along the lateral aspect of the foot on the level
of the border of the ‘red and white’ skin, a bony structure can be
felt approximately at the midpoint of the foot. This is the
tuberosity of the 5th metatarsal bone (➞3.6.2). BL-64is located
directly distal to it (towards the toes), at the junction between the
base and the shaft of the 5th metatarsal bone.
➞BL-63is located proximal to the tuberosity of the 5th metatarsal
bone, in a depression between the calcaneus and cuboid bone
(or between the tuberosity and the cuboid bone). ➞SP-4is
located in a comparable position on the medial aspect of the
foot, in a depression distal to the base of the 1st metatarsal bone.
Needling
Vertically 0.3–0.5 cun
Actions/Indications
● Clears Wind and Heat from the head and eyes
● Calms the shen
● Opens the channel
Special features
Yuan-source point
Capital Bone JINGGU BL-64
Tuberosity of the 5th metatarsal
BL-64 BL-63
G.B.-40
BL-60
BL-62
BL-63 BL-61
BL-64
BL-67 BL-66 BL-65
G.B.-44 G.B.-43
G.B.-42G.B.-41
Calcaneus
Cuboid
Navicular
Intermediate cuneiform
Lateral cuneiform
Metatarsal
bones
Phalanges
Tuberosity of the
5th metatarsal bone
Talus
BL-63 BL-64
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