Tonsils and Adenoids
71 Tonsils and Adenoids 71.1 Anatomy 71.1.1 Waldeyer Ring • Lymphoid tissue encircling the pharynx • Consists of palatine tonsils (the tonsils), pharyngeal tonsils (the adenoids), lingual tonsils, and tubal…
Otosclerosis
6 Otosclerosis 6.1 Definition • An autosomal dominant disease of incomplete penetrance affecting bone derived from the otic capsule in which mature lamellar bone is replaced by woven bone of…
Congenital Abnormalities of the Head and Neck
65 Congenital Abnormalities of the Head and Neck 65.1 Choanal Atresia 65.1.1 Epidemiology • 1/7000 to 8000 live births • Common cause of neonatal respiratory distress • 50 to 60%…
Non-neoplastic Salivary Gland Disease
45 Non-neoplastic Salivary Gland Disease 45.1 Viral Infections (Mumps) • Mostly children • Usually paramyxovirus (Rubulavirus) • Infection is systemic • 2- to 3-week incubation period • 3- to 5-day…
Nasolacrimal Disorders
35 Nasolacrimal Disorders 35.1 Anatomy and Physiology of the Lacrimal System • The anatomy of the lacrimal system can be divided into the secretory, distributory, and drainage components: Secretory system…
Anatomy and Physiology of the Olfactory and Gustatory Systems
33 Anatomy and Physiology of the Olfactory and Gustatory Systems 33.1 Olfactory Epithelium • Neuroepithelium is primarily located underneath the cribriform plate May also be found on parts of the…
