Human Digestive System Overview
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Questions and Answers

What is the main function of the oral cavity in the process of digestion?

  • Absorption of nutrients
  • Transporting food to the stomach
  • Chemical digestion of food
  • Grinding of food by teeth (correct)
  • Which glands are NOT directly associated with the alimentary canal in the human digestive system?

  • Salivary glands
  • Liver
  • Pancreas
  • Thyroid glands (correct)
  • Why is chewing or mastication important in the process of digestion according to the text?

  • To provide energy for chemical reactions
  • To reduce the size of food particles for easier digestion (correct)
  • To absorb nutrients efficiently
  • To increase blood flow to the digestive organs
  • Which part of the digestive system is responsible for the chemical digestion of food?

    <p>Small intestine</p> Signup and view all the answers

    What purpose do the senses of smell and vision serve in the oral cavity during digestion?

    <p>Provide information about food quality</p> Signup and view all the answers

    Which organ secretes enzymes that aid in the digestion of carbohydrates, proteins, and fats?

    <p>Pancreas</p> Signup and view all the answers

    What would happen if food pieces were not ground down in the oral cavity before entering the oesophagus?

    <p>Digestion would be less efficient</p> Signup and view all the answers

    What does the main tube of human digestive system consist of?

    <p>A long tube from mouth to anus</p> Signup and view all the answers

    What would happen if enzymes could act on large pieces of food without chewing or grinding?

    <p>Food particles would not be broken down completely</p> Signup and view all the answers

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