Lung Primary Channel

Chinese: 手太阴肺经

Pinyin: Shǒu Tài Yīn Fèi Jīng

Lung Primary Channel

Pathway for Lung Primary Channel

The internal pathway: 

  • The Lung Primary Channel of Hand Tai-Yin originates from the Middle-Burner in the region of the Stomach. 
  • It runs downward to connect with the Large Intestine, its paired Fu Organ. 
  • Winding back up, it goes along the upper orifice of the Stomach.
  • It then passes through the diaphragm.
  • It enters the Lungs, its pertaining Zang Organ.
  • It then goes up to the throat region. 
  • Comes down transversally to Zhongfu LU-1 on the lateral thoracic wall at the level of the first intercostal space. This is where the Channel emerges to the surface. 

The external pathway: 

  • From LU-1, the external pathway ascends one rib space to Yunmen LU-2 in the center of the hollow of the delto-pectoral triangle. 
  • After descending along the medial aspect of the upper arm, it reaches the cubital fossa of the elbow at Chize LU-5.
  • It continues downward along the medial aspect of the forearm and arrives at the medial side of the styloid process of the radius above the wrist,
  • From there, it enters the radial artery at the wrist for pulse palpation, which it follows to Taiyuan LU-9.
  • It then passes the thenar eminence and goes along the radial side of the thumbnail.
  • Finally, the Channel ends at the medial side of the tip of the thumb at Shaoshang LU-11.


  • A branch separates from the Primary Channel at Lieque LU-7, which is located at the styloid process of the radius. It runs directly to the radial side of the index finger to its tip where it connects with Shangyang LI-1, on the Large Intestine Channel. This is the hand Yin–Yang connection of the first great circuit.

Lung Divergent Channel

Chinese: 手太阴经别

Pinyin: Shǒu Tài Yīn Jīng Bié

Lung Divergent Channel

Pathway for Lung Divergent Channel

  • The Lung Divergent Channel diverges from the Lung Primary Channel at the axilla
  • It travels down to Yuanye GB-22 on the midaxillary line, 3 cun inferior to the axilla. 
  • After entering the thoracic region, it disperses in the Lungs, its pertaining Zang Organ and then descends to the Large Intestine, its paired Fu Organ. 
  • It then ascends again and emerges in the region of the supraclavicular fossa at Quepen ST-12
  • Finally, it traverses the neck in a cranial direction and connects with the Large Intestine Primary Channel at Futu LI-18

Lung Sinew Channel

Chinese: 手太阴经筋

Pinyin: Shǒu Tàiyīn Jīng Jīn

Lung Sinew Channel

Pathway for Lung Sinew Channel

  • The Lung Sinew Channel originates on the thumb at Shaoshang LU-11
  • It then ascends along the radial aspect of the thumb to bind at the thenar eminence around Taiyuan LU-9
  • Following the radial pulse and ascending the flexor aspect of the forearm, it binds at the center of the elbow around Chize LU-5
  • It continues upwards along the antero-lateral aspect of the upper arm and binds again at the anterior shoulder region near the acromioclavicular joint. 
  • It then enters the chest below the axilla and meets the other hand Yin Sinew Channels (Pericardium and Heart Sinew Channel) at Yuanye GB-22.
  • Afterwards, the channel emerges in the region of Quepen ST-12 and travels laterally to the shoulder, anterior to Jianyu LI-15.
  • Finally, it returns to the supraclavicular (Quepen ST-12) region, descends into the chest, spreads over the diaphragm and converges in the region of the floating ribs.

Lung Luo-Connecting Vessel System

Chinese: 手太阴络脉

Pinyin: Shǒu Tài Yīn Luò Mài

Lung Luo-Connecting Vessel System

Pathway for Lung Luo-Connecting Vessel System

  • The Lung Luo-Connecting Vessel separates from the Lung Primary Channel at Lieque LU-7
  • It then follows the Lung channel into the palm and and forms a three-dimensional reticular network, dividing into multiple branches and sub-branches. 
  • It connects with the Lung channel's Interiorly–Exteriorly paired Large Intestine Primary Channel.