Membrane. The depolarization has been caused mainly by the following ions penetrating into the



Cell through its membrane:

A Na +

B HCO3-

C Ca2+

D Cl-

E K+

      67

Parents of a 10 y.o. boy consulted a doctor about extension of hair-covering, growth of beard

And moustache, low voice. Intensified secretion of which hormone must be assumed?

A Of testosterone

B Of somatotropin

C Of oestrogen

D Of progesterone

E Of cortisol

      68

Lung ventilation in a person is increased as a result of physical activity. Which of the following

Indices of the external respiration is much higher than in a state of rest?

A Respiratory volume

B Vital capacity of lungs

C Inspiratory reserve volume

D Expiratory reserve volume

E Total lung capacity

      69

A man took a quiet expiration. Name an air volume that is meanwhile contained in his lungs:

A Functional residual capacity

B Residual volume

C Expiratory reserve volume

D Respiratory volume

E Vital lung capacity

      70

Examination of an isolated cardiomyocyte revealed that it didn't generate excitation impulses

Automatically. This cardiomyocyte was obtained from:

A Ventricles

B Sinoatrial node

C Atrioventricular node

D His' bundle

E Purkinje's fibers

      71

Examination of a man established that cardiac output equaled 3500 ml, systolic output - 50 ml.

What is the man's heart rate pro minute?

A 70

B 60

C 50

D 80

E 90

      72

As a result of continuous starvation the glomerular filtration rate has increased by 20\%. The

Most probable cause of the glomerular filtration alteration under the mentioned conditions is:

A Decrease in the oncotic pressure of blood plasma

B Increase in the systemic arterial pressure

C Increase in the permeability of the renal filter

D Increase of the filtartion quotient

E Increase of the renal blood flow

      73

A man who went for a ride on a roundabout had amplification of heart rate, sweating and

Nausea. What receptors stimulation is it primarily connected with?

A Vestibular

B Proprioceptors

C Tactors

D Auditory

E Visual

      74

A man's intrapleural pressure is being measured. In what phase did the man hold his breath, if

His pressure is 7,5 cm Hg?

A Quiet inspiration

B Quiet expiration

C Forced inspiration

D Forced expiration

E -

      75

Atria of an experimental animal were superdistended by blood that resulted in decreased

reabsorption of Na+ and water in renal tubules. This can be explained by the influence of the

Following factor upon kidneys:

A Natriuretic hormone

B Aldosterone

C Renin

D Angiotensin

E Vasopressin

      76

A middle-aged man went to a foreign country because he had been offered a job there.

However he had been unemployed for quite a long time. What endocrine glands were exhausted

Most of all in this man?

A Adrenal glands

B Parathyroid glands

C Seminal glands

D Substernal gland

E Thyroid gland

      77

A 42 year old patient complains of pain in the epigastral area, vomiting; vomit masses have the

colour of "coffee-grounds", the patient has also melena. Anamnesis records gastric ulcer. Blood

 formula: erythrocytes - 2,8*1012l, leukocytes – 8*109l, Hb- 90 g/l. What complication is it?

A Haemorrhage

B Penetration

C Perforation

D Canceration

E Pyloric stenosis

      78

A 60-year-old man after cerebral hemorrhage felt asleep for a long time. Damage of what

Structure caused this state?

A Reticular formation

B Hippocampus

C Nuclears of the cerebral nerves

D Cortex of the large hemispheres

E Black substances

      79

A human body cools in water much faster that in the air. What way of heat emission in water is

Much more efficient?

A Heat conduction

B Convection

C Heat radiation

D Sweat evaporation

E -

      80

As a result of spinal-cord trauma a 33 y.o. man has a disturbed pain and temperature sensitivity

That is caused by damage of the following tract:

A Spinothalamic

B Medial spinocortical

C Posterior spinocerebellar

D Lateral spinocortical

E Anterior spinocerebellar

      81

After a surgery a 36-year-old woman was given an intravenous injection of concentrated

Albumin solution. This has induced intensified water movement in the following direction:

A From the intercellular fluid to the capillaries

B From the intercellular fluid to the cells

C From the cells to the intercellular fluid

D From the capillaries to the intercellular fluid

E No changes of water movement will be observed

      82


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