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Тесты

Вопрос 
1
Which one of the following are the earliest cells of spermatogenesis?





2
As a result of orchitis (inflammation of testicles) in a man of 43, the production of spermatozoa has been violated. In what part of testicles does this pathological change take place?





3
During the maturation of the spermatids, the glands produce the male sex hormone testosterone, which causes the appearance of the secondary sex characteristics. What cells of testes do produce this hormone?





4
A patient complains of frequent and difficult urination. Disturbance of what structure(s) can cause it?





5
What type of epithelium lines the epididymis?





6
On a histological slide it is seen the transverse section of tubules, whose wall consists of mucosa, musculosa and adventitia. The epithelium of the mucosa is presented with low cambial cells and high prismatic cells with stereocilia. What organ of the male reproductive system was investigated?





7
In the one of the spermatogenesis phases, there are changes of nuclei and cytoplasm of spermatids, which results in the formation of mature gametes. Name this phase of gametogenesis.





8
Testosterone and its analogs do increase the mass of skeletal muscles which allows to use them for treatment of dystrophy. Due to interaction of the hormone with what cell substrate is this action caused?





9
What type of hormone is testosterone?





10
A couple complains about difficulty in conceiving a child. After an inspection, it was discovered – the spermatogenous epithelium of the testicle had been damaged, which resulted in absence of spermatozoa in the seminal fluid and as a result – infertility. What part of the testicles had suffered?





 
 
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