Question

Explain the interactions of the digestive system with the circulatory, respiratory and excretory systems in providing the body with nutrients for energy. ( Essay form )​

Answer 1

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Answer 2

The interaction between the digestive system with the circulatory, respiratory and excretory systems in providing the body with nutrients for energy is as follows:-

• The digestive system essentially converts the complex food materials into simpler substances involving the action of digestive enzymes.
• The food is thus converted into its simplest form and can then be absorbed into the bloodstream. Here comes the role of the circulatory system.
• Blood transports the nutrients to all parts of the body.
• Also, oxygen that is inhaled, moves down the respiratory passage and gets absorbed into the bloodstream at the alveolar level.
• It is important for oxidation of food.
• The undigested food is removed from the body by the excretory system.