HIST 3791 Chapter Notes - Chapter 4.1: Sublingual Gland, Zygomatic Arch, Deciduous Teeth
Document Summary
Function of the glands: secrete saliva, saliva clear fluid, moistens and lubricates food bolus, starts digestion and cleans and protects mucosa. Teeth: adults 32 permanent teeth, 16 in each arch, 3 parts, crown, neck, root, gums (gingivae) line the teeth, thick fibrous tissues covered with mucous membrane, different from rest of oral mucosa because their pale color and. Also known as pharynx behind the mouth and nose. Oropharynx: separted from mouth by the anterior tonsillar pillar (tissue) on each side, pharyngeal tonsils (adenoids) and eustachian tube openings are located here. Oral cavity and throat have lymphatic network. Salivation occurs at 3 months, before baby learns how to swallow saliva. Children have 20 deciduous teeth (temporary) occurs at 6m, 24m of age. Loose deciduous teeth start at 6 through 12 years old. Replaced by permanent teeth starting with central incisors. Permanent teeth in females appear earlier than males, early in children of african descent than children with european descent.
