Morphometry of thyroid cartilage, epiglottis and pyriform fossa v1

Larynx is a complex organ of voice production and respiration, which is supported by a series of cartilages, membranes, muscles and joints. They bring about movement of vocal cords with a considerable range of mobility. Apart from the phonating mechanism, it also serves as a sphincter or watch dog of the lower respiratory tract. The knowledge of laryngeal anatomy is important to various professionals such as phoniatricians, speech therapists, oncologists and otorhinolaryngologists. Understanding the laryngeal framework is mandatory in constructing biomechanical models for voice disorders that requires accuratelaryngeal dimensions. The data of the dimensions of thyroid cartilage, epiglottis and piriform fossa areessential to the anesthesiologists during the laryngoscopy and endotracheal intubation. However, they are scarce in the scientific literature. There are not many studies available about the measurements of thyroid cartilage, piriform fossa and epiglottis in our sample population.