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Structure of the Human Digestive System

Part of The Human Digestive System · GCSE GCSE Biology revision

This diagram covers Structure of the Human Digestive System within The Human Digestive System for GCSE Biology. Structure and function of digestive organs, mechanical and chemical digestion, enzymes, absorption, and practical investigations It is section 2 of 15 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Topic position

Section 2 of 15

Practice

22 questions

Recall

24 flashcards

Structure of the Human Digestive System

Keep building this topic

Read this section alongside the surrounding pages in The Human Digestive System. That gives you the full topic sequence instead of a single isolated revision point.

The Body's Food Processing FactoryThe Alimentary Canal: A Detailed JourneySmall Intestine: The Absorption SpecialistAssociated Digestive Organs

Practice Questions for The Human Digestive System

Which organ produces hydrochloric acid to kill bacteria in food?

  • A. Liver
  • B. Stomach
  • C. Small intestine
  • D. Pancreas
1 markfoundation

Explain the role of bile in the digestive system.

3 marksstandard

Quick Recall Flashcards

What is peristalsis?
Peristalsis is the wave-like contractions of smooth muscle that push food through the digestive system. Circular muscles contract behind food while longitudinal muscles relax in front.
What are villi?
Villi are tiny finger-like projections on the wall of the small intestine that greatly increase the surface area for absorption of nutrients.

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The Body's Food Processing Factory

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The Alimentary Canal: A Detailed Journey