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Oral Embro & Histo
CH 8 - Oral Embryology and Histology
Question | Answer |
---|---|
Term for the highest point of the alveolar ridge. | Alveolar Crest |
The cavity within the alveolar process that surrounds the root of a tooth. | Alveolar Socket |
Term for the cells that form enamel. | Ameloblasts |
Portion of the tooth that is covered with enamel. | Anatomical Crown |
Term for the tapered end of each root tip. | Apex |
Term for the natural opening in the root. | Apical Foramen |
Term for the cells that form ameloblasts. | Cementoblasts |
Term for the cells that resorb cementum. | Cementoclasts |
The specialized, calcified connective tissue that covers the anatomic root of a tooth. | Cementum |
Term for the portion of the tooth that is visible in the oral cavity. | Clinical Crown |
Term for the union of the male sperm and the female ovum. | Conception |
Term for the part that lies within the crown portion of the tooth. | Coronal Pulp |
Term for the dense outer covering of spongy bone that makes up the central part of the alveolar process. | Cortical Plate |
The thickened band of oral epithelium that follows the curve of each developing arch. | Dental Lamina |
Term for the gingivae between the teeth. | Dental Papilla |
Term for the connective tissue that envelops the developing tooth. | Dental Sac |
Term for the hard portion of the root that surrounds the pulp and is covered by enamel on the crown and by cementum on the root. | Dentin |
Term for the fibers found in dental tubules. | Dentinal Fibers |
Term for the microscopic canals found in dentin. | Dentinal Tubules |
The process by which the body adds new bone. | Depostion |
An organism in the earliest stages of development. | Embryo |
The study of prenatal development. | Embryology |
The stage of human development that occurs from the beginning of the second week to the end of the 8th week. | Embryonic Period |
Term for the thin, leaflike structures that extend from the enamel surface toward the detinoenamel junction (DEJ); consisting of organic material with little mineral content. | Enamel Lamellae |
Term for the part of a developing tooth destined to produce enamel. | Enamel Organ |
Term for the ends of odontoblasts that extend across the DEJ a short distance into the enamel. | Enamel Spindles |
Term for the hypocalcified or uncalcified ends of groups of enamel prisms that start at the DEJ and may extend to the inner third of the enamel. | Enamel Tufts |
Term for the normal process of shedding the primary teeth. | Exfoliation |
The stage of human development that starts at the beginning of the 9th week and ends at birth. | Fetal Period |
Term for an embryonic human from 2 months after conception to birth. | Fetus |
Term for the type of cell in connective tissue responsible for the formation of the intercellular substance of pulp. | Fibroblasts |
Term for the stage of human development that starts at fertilization and ends at birth. | Gestation |
The study of the structure and function of body tissues on a microscopic level. | Histology |
Name given for the alternating light and dark bans in the enamel that are produced when enamel prisms intertwine or change direction. | Hunter-Schreger Bands |
Term for the mineral compound that is the principal inorganic component of bone and teeth. | Hydroxyapatite |
Term for the 2nd brachial arch, which forms the styloid process, stapes of the ear, stylohyoid ligament, and part of the hyoid bone. | Hyoid Arch |
Thin, compact bone that lines the alveolar socket; AKA cribriform plate | Lamina Dura |
Mucous membrane that lines the inside of the cheeks, vestibule, lips, soft palate, and underside of the tongue. | Lining Mucosa |