Ayurveda is a traditional Indian healing system that has been practiced for more than 5000 years. One of its most important anatomical terms, Dhamani, has been the subject of much debate among scholars. According to classical texts by Acharya Sushruta, Charaka and Vaghbhata, Dhamani are thick-walled ducts that transport Rasa (plasma/lymph chyle) and Rakta (blood). Although they are sometimes used interchangeably with Sira (vein) and Srotas (capillary), Acharya Sushruta distinguishes them as arteries because of their pulsatile nature. Ayurveda incorporates modern anatomical structures—veins, capillaries, lymphatics, and nerves—within the terms Sira, Dhamani, and Srotas. The cardiovascular system, which is essential for maintaining life, is represented by Hridaya (heart), Sira, and Dhamani with the heart serving as the central pumping organ. According to Sushruta, ten Dhamanis extend upward, ten downward, and four laterally from the Nabhi (navel), while Acharya Charaka states they originate from the heart. The Urdhvagami Dhamanis (upward) regulate sensory and vocal functions, Adhogami Dhamanis (downward) facilitate excretion, and Tiryaggami Dhamanis (lateral) likely correspond to peripheral blood vessels. The circulatory system consists primarily of arteries, with the heart and veins making up the other major parts. Arteries are tube-like structures that carry fluid to and from all of the body's organs. For the circulatory system, this means blood, and for the lymphatic system, lymph. Arteries primarily regulate how oxygen, nutrients, and hormones are transported throughout our body. Once oxygen is loaded onto the Fe 2+ atom in the middle of hemoglobin, arteries can release new oxygen into the body. Hemoglobin binds to oxygen, which is then transported via the arteries to oxygen-deficient regions. It is then discharged to particular regions via large surface areas called capillaries due to a change in affinity for the oxygen.
Gupta et al. (Tue,) studied this question.