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Тесты

Вопрос 
1
A histological preparation of lower jaw shows dentin being formed. Collagen fibers synthesized by odontoblasts are thin and situated perpendicular to dentinal tubules. What fibers are being produced in dentin?





2
Hormonal form of a certain vitamin induces genome level synthesis of Ca binding proteins and enterocytes thus regulating the intestinal absorption of Ca2+ ions required for dental tissue development. What vitamin is it?





3
An in flammatory process in tissues is characterised by hyperemia and edema. What leukocytes situated in connective tissue provide for vasodilatation and increased blood vessel capacity under these conditions?





4
During formation of mantle dentin in a deciduous tooth there occurred a disruption of odontoblast secretory activity. Such disruption will affect the formation of the following fibers:





5
A 36-year-old patient underwent tooth extraction at a dental clinic. After two weeks the stratified squamous epithelium regenerated at the site of extraction. What organelles were involved in the restoration of the mucous membrane?





6
Study of the histological specimen of a baby’s primary tooth revealed hypoplasia (underdevelopment) of enamel. This abnormality is caused by the disruptions in the activity of the following cells:





7
Proliferation of connective tissue in the parenchyma of liver (fibrosis) caused by chronic diseases is typically accompanied by an impairment of blood circulation in the classic lobules. What is the direction of blood flow in these lobules?





8
Osteolaterism is charcterized by a decrease in collagen strength caused by significantly less intensive formation of cross-links in collagen fibrils. This phenomenon is caused by the low activity of the following enzyme:





9
A 43-year-old woman complains of weight loss, hyperhidrosis, low-grade fever, increased irritability. She has been found to have hyperfunction of the sympathetic-adrenal system and basal metabolism. These disorders can becaused by hypersecretion of the following hormone:





10
A 35-year-old patient diagnosed with sterility came to gynaecological department for diagnostic biopsy of endometrium. Microscopic examination revealed that mucous membrane is edematous, uterine glands are convoluted and filled with thick secreta. Such changes in the endometrium are caused by excess of the following hormon:





 
 
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