Companion PDF worksheet for Edexcel IGCSE Biology Lecture 19 - Ventilation. Contains short answer questions, an activity requiring lateral thinking and exam-style questions.
Specification Point 2.46 - Describe the structure of the thorax, including the ribs, intercostal muscles, diaphragm, trachea, bronchi, bronchioles, alveoli and pleural membranes.
Specification Point 2.47 - Understand the role of the intercostal muscles and the diaphragm in ventilation.
Complete set of Chapter 3 Worksheets are available.
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