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EMBRYOLOGY AND HIST
MIDTERM
| Question | Answer |
|---|---|
| During what week can it be determined whether cleft lip will be present? | week four |
| During what week can it be determined whether cleft palate will be present? | week twelve |
| How does the maxillary process develop? | from the mandibular arch |
| How does the mandible develop? | from the first branchial arch |
| Usually mixed dentition begins with what teeth? | First permanent molar |
| What is the tooth development stage in which the shape of the tooth becomes evident and the dental tissues are secreted as a matrix? | Appositon stage |
| What is Dens in Dente? | Enamel organ invaginates into the dental papilla |
| What is the stage of tooth development that involves the extensive proliferation of the denal lamina? | Bud Stage |
| What is the stage of tooth development that involves the extensive differentiation? | Bell Stage |
| Which tooth buds appear first? | mandibular incisors |
| What layers are the cells responsible for enamel matrix derived? | Inner enamel epithelium |
| What will deposit the enamel matrix? | Tome's process |
| What tissues will ultimately develop into the dentin and pulp? | dental papilla |
| What tissue layers provide protection for the enamel matrix? | Outer enamel epithelium |
| What is a malfunction of the initiation stage? | Anodontia and supernumerary teeth |
| What is a malfunction of the bud stage? | macrodontia/microdontia |
| What are normal repair times? | four days |
| Normal RBC count? Normal WBC count? | RBC-5-6million per microliter WBC-5-10,000 per mililiter |
| What is the most common WBC? | neutrophil |
| How does bone remodel for a patient undergoing orthodontic tx? | osteoblastic and osteoclastic activity |
| What is a thin, acellular nonliving structure located between the epithelium and connective tissue? | basement membrane |
| What is the most common cell in all kinds of connective tissue? | fibroblast |
| What is produced by the Golgi complex? | lysosomes |
| What functions in both intacellular and extracellular digestion? | lysosomes |
| What is the spiderlike cell in the epithelium that produces pigment in response to the enzyme tirosinase? | melanocyte |
| What is the fatty tissue found beneath the skin called? | adipose |
| What is normal calcified connective tissue? | bone |
| What is engulfing and digesting of solid waste and foreign material at the cellular level? | phagocytosis |
| What is the connective tissue in the oral cavity called? | lamina propria |
| Haversion system is associated with what tissue? | compact bone |
| What is the largest, densest, and most conspicious organelle in the cell? | nucleus |
| What is the organelle that converts energy and acts as the 'power plant' of the cell? | mitochondria |
| What is the intracellular organelle that produces proteins? | ribosomes |
| What is the organelle of the cell that acts to package proteins and store them? | Golgi Complex |
| What cells are present in the blastocyst Bilaminal embryonic disc? | Epiblast and Hypoblast |
| Which of the following represent cells that are present in the trilaminar embryonic disc? | Epiblast, endoderm and mesioderm |
| Embryonic folding of the embryo that turns the cells into a tube occurs at approximately? | Four weeks |
| The two large bulges that appear at approximatley 4-5 weeks represent? | The brain and the heart |
| What is the embryonic origin of all connective tissue? | mesiochyme |
| The oral and nasal cavities develop from the first branchial arch and the fronal process except for what area? | base of the tounge |
| What teeth will never be present, even after a surgical repair of the existing condition in an infant born without a primary palate? | primary and permanent maxillary incisors |
| A cleft lip occurs when the maxillary process fails to fuse with what process? | medial nasal process |
| What is the earliest signs of the development of the human face? | formation of the stomadeum |
| What surrounds the cell and is the "gatekeeper" of the cells interior? | plasma membrane |
| What type of attachment is present between the epithelial cells and the basal lamina of the basement membrane? | Hemidesmosomes |
| What anatomic feature seperates the root and the body of the tounge? | circumvalle papilla |
| what teeth develop in the primary palate? | maxillary incisors |
| What gives rise to connective tissue? | mesoderm |
Created by:
karmstrong1