Question

prepare a model of human digestive system with locally available materials​

Answer 1

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The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three stages

★Digestive System Physiology

• Ingestion of food.
• Secretion of fluids and digestive enzymes.
• Mixing and movement of food and wastes through the body.
• Digestion of food into smaller pieces.
• Absorption of nutrients.
• Excretion of wastes.