The Harmsworth Encyclopaedia 1930s / 1940s - Vintage black and white photo of illustrations / diagrams of The Larynx. Medical social history displaying the lateral aspect, vertical section, vocal cords seen from above during quiet breathing, the same during phonation, longitudinal section of larynx seen from behind, thyroid cartilage; cricoid cartilage, hyoid bone, rings of trachea, epiglottis, arytenoid cartilage, thyro-arytenoid muscle, Adam`s apple, false vocal cord, true vocal cord, ventricle, rima glottis. Medical illustrations from 1900s.
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