Comparative study between the evolutionary history of development of blood vessels in various species (Brahmanda or Srushti) and the Human Embryo (Pinda) to evaluate ‘Yata Pindam Tata Brahmandam’

Abstract

Introduction: Embryology is considered to provide evidence for evolution and is a way to link various species on the phylogenetic tree of life. To higher recognize the evolutionary embryology in the back of the blood vascular device and endothelium recognition of the taxonomy is very essential. By this we came to know that different species achieve the goals of reproduction, nutrition and survival by different means. These changes diverge due to change in body size and variation in structural complexity. The same way vascular system in mammals develops. Materials and Methods: From various published articles through google search, texts of Ayurveda mainly Charaka Samhita and modern embryology texts and internet media. Aim & Objective: To compare the process of evolution of blood vessels in Garbha with that of evolution of various species on phylogenetic tree on basis of their functional requirements. Result and Discussion: Before the formation of placenta there is histotrophic nutrition in which embryo gets its nutrition through diffusion from uterine glands. This diffusion state is the Srotas in Ayurveda mentioned as Sravanatsrotansi. This diffusion can provide nutrition to small area or cell group only. With the beginning of formation of placenta, the histotrophic nutrition is replaced by the hemotrophic nutrition. As embryo further grows, the nutrition demand increases so to balance, tube circulation (vasculature) develops in embryo in order to increase the flow. This vasculature is the state of Sira in Ayurveda mentioned as Sarnatsira. Similarly, development of vessels from Srotas to Dhamani occurs in Fetus due to change in functional requirements. This occurs in human body. Thus, in this paper “Yata Pinde Tata Brahmande” Nyaya of Yajurveda which is very much similar to Ayurveda “Lok Purusha Samya Siddhanth” is justified in context of taxonomical circulatory system evolution and development.