part 2

Question 1

RNA-polymerase B(II) is blocked due to amanitine poisoning (poison of death- cup). It disturbs:

Answer 1

Synthesis of m-RNA

Question 2

Secretion of what gastrointestinal hormones will be primarily decreased as a result of iduodenum removal?

Answer 2

Cholecystokinin and secretin

Question 3

It is planned to use the territory of an old cattle burial ground (which is not used for more than 50 years) for building houses. But ground analysis revealed presence of the pathogen of a very dangerous illness. Which of the indicated microorganisms is likely to remain in the ground for such a long time?

Answer 3

Bacillus anthracis

Question 4

From the nasopharynx of a 5- year-old child it was excreted a microorganism which is identical to Corynebacterium diphtheriae dose according to morphological and biochemical signs. But this microorganism does not produce exotoxin. As a result of what process can this microorganism become toxigenic?

Answer 4

Phage conversion

Question 5

A patient with encephalopathy was admitted to the neurological in- patient department. There was revealed a correlation between increasing of encephalopathy and substances absorbed by the bloodstream from the intestines. What substances that are formed in the intestines can cause endotoxemia?

Answer 5

Indole

Question 6

A 50-year-old man has felt vague abdominal discomfort within past 4 months. Physical examination revealed no lymphadenopathy, and no abdominal masses or organomegaly at palpation. Bowel sounds are heard. An abdominal CT scan shows a 20 cm retroperitoneal soft tissue mass obscuring the left psoas muscle. A stool specimen tested for occult blood is negative. Which of the following neoplasms is this man most likely to have?

Answer 6

Lipoma

Question 7

A patient has undergone an amputation of lower extremity. Some time later painful nodules appeared in a stump. Amputatious neuromas were found out at the microscopic examination. To what pathological processes do those formations relate?

Answer 7

Regeneration

Question 8

During the fetal period of the development in the vascular system of the fetus a large arterial (Botallo’s) duct is functioning which converts into lig. arteriosum after birth. What anatomical formations does this duct connect?

Answer 8

Pulmonary trunk and aorta

Question 9

A 22-year-old patient was admitted to the hospital with complaints of heavy nasal breathing. During the examination of her nasal cavity the doctors found thickened mucous membrane, a lot of mucus and nodular infiltrates without erosions in the nose.The nasal rhinoscleroma was diagnosed. The biopsy was taken. What typical morphological changes may be found?

Answer 9

Granulomas with Mikulicz’s cells

Question 10

Intake of oral contraceptives containing sex hormones inhibits secretion of the hypophysiae hormones. Secretion of which of the indicated hormones is inhibited while taking oral contraceptives with sex hormones?

Answer 10

Follicle-stimulating