1689829
Description
Quiz by أطباء 2020, updated more than 1 year ago
|
Created by أطباء 2020
almost 10 years ago
|
|
Question 1
Question
In sterognosis, all of the following are true EXCEPT
Answer
-
Highly educated sensation
-
Mixed sensation
-
needs previous experience and intact sensory association cortex
-
intact in case of lesion in sensory cortex
Question 2
Question
the most specific synapse is
Answer
-
Axosomatic
-
Axoaxonic
-
Axodendritic
Question 3
Question
Regarding fine touch
Answer
-
Slowly adapting
-
carried by Ab aferent
-
Transmit through anterolateral system
-
Poorly localized sensation perceived at the thalamus
Question 4
Question
Enkephalin blocks pain transmission by:-
Answer
-
blocking the response of pain receptors to painful stimuli
-
Slowing down transmission of pain impulses through synapses in the pain Pathway
-
Inhibiting the response of the cerebral cortical somatic sensory area to pain Signals
-
Blocking Ca ++ channels in the central terminals of pain sensory fibers
Question 5
Question
IPSP differs from EPSP in:-
Answer
-
being of shorter duration
-
being unable to summate spatially
-
Moving the membrane potential away from threshold
-
Depending upon opening of voltage Na + channels
Question 6
Question
Intermittent Claudications evoke:-
Answer
-
Fast pain
-
Visceral pain
-
Deep pain
-
Cutaneous hyperalgesia
-
Colicky pain
Question 7
Question
Astereognosis:-
Answer
-
indicates inability to localize the site of touch on the body surface
-
Results from lesions of the secondary somatic sensory area
-
Somatic Association area malfunction
-
Results from loss of crude touch sensation
Question 8
Question
Presynaptic inhibition depends upon:-
Answer
-
Augmented realease of neurotransmitter from presynaptic terminal
-
Continued depolarization of presynaptic terminals
-
GABA receptors in presynaptic terminals
-
Opening of voltage-gated Ca ++ channels in presynaptic terminals
Question 9
Question
Synaptic fatigue is due to: -
Answer
-
decreased synthesis of neurotransmitters
-
Inability to release neurotransmitters by exocytosis
-
Failure of action potentials to open voltage-gated Ca ++ channels in Presynaptic terminal
-
Imbalance in between rates of synthesis and release of neurotransmitters
Question 10
Question
Reaction to pain includes all the following, except:-
Answer
-
increased heart rate
-
Depression
-
Withdrawal reflexes
-
Stoppage of impulse discharge from nociceptors in chronic painful conditions
Want to create your own Quizzes for free with GoConqr? Learn more.