[Measurements, form and form variants of the thyroid and cricoid cartilages].

Different measurements of the height and oblique landmarks are given. There are included the shape of the tubercula and the distances to landmarks and the cornua. On the cricoid cartilage, there are measured the height of arcus and lamina and its antero-posterior length, also the distances to the inferior horn, the inferior tubercle, and the inferior-anterior border of the thyroid cartilage.