Rakta dhātu — blood proxy
Second tissue / life-bearing red tissue
Rakta dhātu is shown beside the upper-abdominal liver region because Ayurvedic teaching commonly uses the liver as a formative and target-organ reference for blood. The point is a target-organ projection of a substance/tissue category, not a claim that rakta is anatomically stored at this surface coordinate.
Point 2 of 7 in Dravyaguṇa — Seven Dhātu Affinity
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Caraka Saṃhitā (primary_canonical)
Caraka's dhātu discussions distinguish rakta as the blood tissue and discuss its nourishment after rasa; the plotted liver-side proxy is not a canonical coordinate.
Vasant Lad, Ayurveda: The Science of Self-Healing (secondary)
Modern explanatory synthesis for rakta dhātu and its relationship to the liver and circulating vitality; used only to guide the target-organ proxy.