CHAPTER VII.
Organology,—Continued: The Thoracic Cavity 83 Larynx 84 The Trachea 85 The Pleurae 87 The Lungs 88 The Mediastinum 91 The Pericardium (Heart Sac) 92 The Heart 92 The Alimentary Canal 96 The Mouth 97 The Teeth 97 The Palate 97 The Salivary Glands 98 The Pharynx 98 The Esophagus 99 The Diaphragm 99