Dàcháng 大腸 — Large Intestine channel-entry target
Large-intestine network affinity
The Large Intestine channel-entry label identifies a substance affinity in the zang-fu network used by materia medica texts. Its dot is editorially placed beside the lower thoracic/upper abdominal field and does not depict bowel anatomy or an acupuncture trajectory.
Point 2 of 12 in Gui Jing (歸經) — Meridian Tropism
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Shennong Bencao Jing (神農本草經) (primary_canonical)
The materia-medica corpus classifies substances by nature, function, and therapeutic destination; it is a classical source for tropism reasoning but does not present a modern twelve-meridian diagram.
Bensky, Clavey & Stöger, Chinese Herbal Medicine: Materia Medica (secondary)
A contemporary materia-medica reference that records channel-entry and organ-affinity conventions used in clinical Chinese herbal practice.