b) Pharynx: It is short but wide space which serves as a common passage for food and air. The air passage is guarded by a movable flap called the epiglottis, while the soft palate closes the way to the nasal passage.

c) Esophagus: It is a tube about 25 cm in length, extending from the pharynx to the stomach. Food passes by the peristalsis.

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Table of Contents

16.0 - Introduction
16.1 - Nutritional Requirements, Imbalances and Deficiency Diseases
16.2 - Organs of Digestion and Physiology of Digestion

Chapter 17