A man has normal sensitivity of his finger skin, however he doesn’t sense his wedding ring
Around the finger. What process induced by wearing of the ring has caused this phenomenon?
A Receptor adaptation
B Development of the fibrous tissue
C Abnormality of the epidermis structure
D Impaired circulation
E Abnormality of the receptor structure
36
An aged man had raise of arterial pressure under a stress. It was caused by activation of:
A Sympathoadrenal system
B Parasympathetic nucleus of vagus
C Functions of thyroid gland
D Functions of adrenal cortex
E Hypophysis function
37
A month after surgical constriction of rabbit's renal artery the considerable increase of
Systematic arterial pressure was observed. What of the following regulation mechanisms
Caused the animal's pressure change?
A Angiotensin-II
B Vasopressin
C Adrenaline
D Noradrenaline
E Serotonin
38
A child has abnormal formation of tooth enamel and dentin as a result of low concentration of
Calcium ions in blood. Such abnormalities might be caused by deficiency of the following
Hormone:
A Parathormone
B Thyrocalcitonin
C Thyroxin
D Somatotropic hormone
E Triiodothyronine
39
A sportsman was examined after an intensive physical activity. The examination revealed
Disorder of movement coordination but the force of muscle contractions remained the same. It
Can be explained by retarded speed of excitement conduction through:
A Central synapses
B Neuromuscular synapses
C Efferent nerves
D Afferent nerves
E Conduction tracts
40
After a long training session a sportsman has developed fatigue accompanied by abrupt
Performance decrement. What link of the reflex arch was the fatigue initiated in?
A Nerve centres
B Afferent conductor
C Receptors
D Efferent conductor
E Muscles
41
ECG study showed that the T-waves were positive in the standard extremity leads, their
Amplitude and duration were normal. The right conclusion would be that the following process
Runs normally in the heart ventricles:
A Repolarization
B Depolarization
C Excitement
D Contraction
E Relaxation
42
Blood minute volume of a 30 year old woman at rest is 5 l/m. What blood volume is pumped
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Through the pulmonary vessels per minute?
A 5 l
B 3,75 l
C 2,5 l
D 2,0 l
E 1,5 l
43
As a result of long-term starvation the glomerular filtration of a man was accelerated by 20\%.
The most probable cause of filtration changes under such conditions is:
A Fall of oncotic pressure of blood plasma
B Rise of systemic arterial pressure
C Increased permeability of renal filter
D Growth of filtration coefficient
E Increase of renal plasma flow
44
In course of an experiment a skeletal muscle is being stimulated by a series of electric impulses.
What type of muscle contraction will arise, if every subsequent impulse comes in the period of
Shortening of the previous single muscle contraction?
A Holotetanus
B Partial tetanus
C Asynchronous tetanus
D A series of single contractions
E Muscle contracture
45
A patient under test was subjected to a moderate physical stress. His minute blood volume
Amounted 10 l/min. What blood volume was pumped through his lung vessels every minute?
A 10 l/min
B 5 l/min
C 4 l/min
D 6 l/min
E 7 l/min
46
A patient presents with the following motor activity disturbances: tremor, ataxia and asynergia
Movements, dysarthria. The disturbances are most likely to be localized in:
A Cerebellum
B Basal ganglions
C Limbic system
D Brainstem
E Medulla oblongata
47
A man has a considerable decrease in diuresis as a result of 1,5 l blood loss. The primary
Cause of such diuresis disorder is the hypersecretion of the following hormone:
A Vasopressin
B Corticotropin
C Natriuretic
D Cortisol
E Parathormone
48
While shifting the gaze to the closely situated object the refracting power of eye's optical
Mediums will increase by 10 diopters. It results from changing of such eye structure:
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A Lens
B Cornea
C Vitreous body
D Liquid of the anterior chamber of eye
E Muscle that dilatates pupil
49
Spasm of smooth muscle of bronchi developed in the patient. Usage of activators of what
Membrane cytoreceptors is fisiologically valid to decrease attack?
A β -adrenoreceptors
B α - а drenoreceptors
C α - та β - а drenoreceptors
D Н -cholinoreceptors
E М -cholinoreceptors
50
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