ANATOMICAL UNDERSTANDING OF THE DIGESTIVE SYSTEM IN AYURVEDA AND MODERN SCIENCE

Abstract

The digestive system represents a fundamental pillar of human health in both traditional and contemporary medical sciences. This article presents a comprehensive comparative analysis of the digestive system from the perspectives of Ayurveda, the classical Indian system of medicine, and Modern Biomedical Science. In Ayurveda, digestion is governed by the principle of Agni (digestive and metabolic fire), which regulates the transformation of food into nutritive essence (Rasa) and subsequently nourishes the Sapta Dhatus (seven fundamental body tissues). Impairment of Agni results in the formation of Ama, a toxic metabolic by-product considered a primary etiological factor in the development of disease. The Ayurvedic framework emphasizes functional metabolism, systemic balance of Doshas (Vata, Pitta, Kapha), and the role of Annavaha Srotas in nutrient transport and assimilation. In contrast, modern biomedical science describes the digestive system through detailed anatomical structures—including the oral cavity, esophagus, stomach, small and large intestines, liver, pancreas, and associated glands—and explains digestive processes via mechanical breakdown, enzymatic hydrolysis, hormonal regulation, neural control through the enteric nervous system, and nutrient absorption across the intestinal mucosa. Emerging insights into the gut microbiome, metabolic pathways, and immunological interactions further enrich contemporary understanding. Through conceptual synthesis, this article identifies parallels between Ayurvedic and modern models, particularly in their shared recognition of digestion as central to systemic health, immunity, and metabolic homeostasis. It also highlights differences in epistemology, terminology, and methodological approaches. By integrating traditional Ayurvedic principles with modern anatomical and physiological knowledge, the study proposes a complementary framework that may enhance preventive strategies, personalized nutrition, and holistic clinical practice. This integrative perspective underscores the relevance of ancient medical wisdom in contemporary healthcare discourse.