Examination of a 35 year old patient revealed high acidity of gastric juice. What receptors
Should be blocked in order to reduce it?
A Histamine
B α 1 -adrenoreceptors
C α 2 -adrenoreceptors
D β 1 -adrenoreceptors
E β 2 -adrenoreceptors
156
A young woman who entered a production department where it strongly smelt of paints and
Varnishes had a bronchospasm. This reflex was caused by irritation of the following receptors:
A Irritant
B Juxtaglomerular
C Pleura receptors
D Central chemoreceptors
E Peripheral chemoreceptors
157
A 60-year-old patient presents with weakened peristaltic activity of the bowels. Which of the
Following foodstuffs would stimulate peristalsis most of all?
A Brown bread
B White bread
C Meat
D Lard
E Tea
158
An isolated muscle fiber is under examination. It was established that the threshold of stimulation
Force became significantly lower. What is the cause of this phenomenon?
A Activation of sodium channels of membrane
B Activation of potassium channels of membrane
C Inactivation of sodium channels of membrane
D Inactivation of potassium channels of membrane
E Block of energy production in the cell
159
It was established that agglutination of the recipient’s blood erythrocytes had been caused by
The standard sera from the I and II groups. Serum from the III group as well as anti-Rh
serum hadn‘t provoke any agglutination. Which blood group and rhesus is allowed to be
Transfused this recipient?
A B, α (III) Rh-
B A, β (II) Rh-
C 0, α , β (I) Rh+
D AB (IV), Rh+
E AB (IV), Rh-
160
A patient consumed a lot of reach in proteins food that caused increase of rate of proteolytic
Enzymes of pancreatic juice. It is also accompanied by increase of rate of the following enzyme:
A Tripsin
B Pepsin
C Enterokinase
D Gastricsin
E Renin
161
In course of an experiment thalamocortical tracts of an animal were cut. What type of sensory
Perception remained intact?
A Olfactory
B Auditory
C Exteroreceptive
D Visual
E Nociceptive
162
It has been experimentally proven that the excitation of the motor neurons of flexor muscles is
Accompanied by the inhibition of the motor neurons of extensor muscles. What type of inhibition
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Underlies this phenomenon?
A Reciprocal
B Inhibition after excitation
C Pessimal
D Feedback
E Lateral
163
A man sitting with his eyes closed, undergoes electroencephalography. What rhythm will be
Recorded on the EEG if there is an audible signal?
A Beta rhythm
B Theta rhythm
C Delta rhythm
D Alpha rhythm
E Gamma rhythm
164
A male with a lesion of one of the CNS parts has asthenia, muscular dystonia, balance disorder.
Which CNS part has been affected?
A Cerebellum
B Black substance
C Reticular formation
D Red nuclei
E Vestibular nuclei
165
The temperature in a production room is 36oC. Relative air humidity is 80%. Under these
Conditions the human body transfers heat mainly through:
A Sweat evaporation
B Heat conduction
C Radiation
D Convection
E -
166
Curariform substances introduced into a human body cause the relaxation of all skeletal
Muscles. What changes in the neuromuscular synapse cause this phenomenon?
A Blockade of N-cholinergic receptors of the synaptic membrane
B Impaired acetylcholine release
C Blockade of Ca2+ channels of the presynaptic membrane
D Impaired cholinesterase synthesis
E Depolarization of the postsynaptic membrane
167
A patient has normally coloured stool including a large amount of free fatty acids. The reason for
This is a disturbance of the following process:
A Fat absorption
B Fat hydrolysis
C Biliary excretion
D Choleresis
E Lipase secretion
168
Thermometry revealed that the temperature of the exposed skin is by 1-1,5o lower than the
Temperature of the adjacent areas covered with clothing from natural fabrics. The reason for
This is that the clothes reduce the heat loss through:
A Convection
B Radiation
C Conduction
D Evaporation
E -
169
During the fight, a man had a cardiac arrest due to the strong blow to the upper region of the
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Anterior abdominal wall. Which of the following mechanisms has led to the cardiac arrest?
A Parasympathetic unconditioned reflexes
B Sympathetic unconditioned reflexes
C Parasympathetic conditioned reflexes
D Sympathetic conditioned reflexes
E Peripheral reflexes
170
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