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DHYG341-34

Dental Embryology Terminology

TermDefinition
Apoptosis Programmed cell death, fragmentation of a cell into membrane bound particles, eliminated by phagocytosis by specialized cells, accompanies embryonic growth & differentiation
Tissues from Endoderm Internal layer: the epithelial lining the inside of the digestive tube except part of the mouth and pharynx; forms digestive tract (liver and pancreas) and alveolar (lung) cells
Tissues from Ectoderm Outer layer: forms CNS (neural tube, brain, & spinal cord), tooth enamel, lens of the eye, neural tube (becomes brain & spinal cord), epidermis of hair & nails, the sensory epithelium (of eye, ear, nose), and epithelium of oral & nasal
Tissues from Mesoderm Middle layer: forms cardiac, skeletal and smooth muscle, bone, cartilage, lymph cells, blood, dentin, pulp, cementum, and periodontal ligament
Trilaminar Disk Formed by the process of gastrulation where the bilaminar disk becomes the trilaminar disk (cells will flow in over the primitive streak); embryo that consists of 3 germ layers: ectoderm (outer), mesoderm (inner), endoderm (internal)
Created by: debbiejnguyen
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