9: ENT Last updated Dec 7, 2021 Save as PDF 8.6: Thyroid 9.1: Disorders of the Head and Neck Page ID56763 ( \newcommand{\kernel}{\mathrm{null}\,}\) 9.1: Disorders of the Head and Neck9.2: Ear Embryology and physiology9.3: Face Embryology and Anatomy9.4: Head and Neck Embryology and Anatomy