6660093
Beschreibung
Quiz von Nada Medhat, aktualisiert more than 1 year ago
|
|
Erstellt von Nada Medhat
vor etwa 8 Jahre
|
|
Frage 1
Frage
Regarding sensory receptor properties
Antworten
-
All receptors respond to a specific quality of a stimulus
-
A touch receptor will generate a constant rate of discharge of its axon for as long as the receptor is stimulated.
-
The frequency of a train of action potentials in an afferent fibre reflects the intensity of the stimulus given to its receptor
-
The first step in sensory transduction is the generation of an action potential
Frage 2
Frage
Receptors that respond when a stimulus is first applied, but quickly stop responding to continual stimulation, are the
Antworten
-
phasic receptors
-
nocioreceptors
-
exteroceptors
-
tonic receptors
Frage 3
Frage
An environmental stimulus acting on the body initially produces an electrical response, called a(n) .................. in the receptor neuron
Antworten
-
generator potential
-
excitatory postsynaptic potential
-
action potential
-
stimulus potential
Frage 4
Frage
Alkalosis .......neuronal activity , while acidosis ....... neuronal activity
Antworten
-
increases , increases
-
.increases,decreases
-
decreases, increases
-
decreases,decreases
Frage 5
Frage
Synaptic transmission is inhibited by all the following, except
Antworten
-
oxygen lack
-
alkalosis
-
acidosis
-
prolonged activity of synapse
Frage 6
Frage
Post-tetanic Potentiation in synapses
Antworten
-
is due to increased Ca ++ concentration in postsynaptic neurons
-
is due to increased Ca ++ influx into presynaptic neurons
-
results from slow prolonged stimulation of synapse
-
causes fatigue of the synapse
Frage 7
Frage
Intermittent Claudications evoke
Antworten
-
visceral pain
-
deep pain
-
cutaneous hyperalgesia
-
colicky pain
Frage 8
Frage
in hemisection of the spinal cord , all the following are true EXCEPT:-
Antworten
-
anethesia is found at the level of lesion ipsilaterally
-
hyperthesia nay present above the level of lesion on the same side due to irritation of dorsal root
-
spastic paralysis and exaggerated muscle reflex is found contralaterally below level of lesion
-
all of the above are true
Frage 9
Frage
when sensory area I of the cerebral cortex is ablated
Antworten
-
perception of pain is completely abolished
-
perception of touch is completely abolished
-
there is loss of tactile localization but two point discrimination is spared
-
there is loss of tactile localization as well as two point discrimination
Frage 10
Frage
which of the following NOT produce intracranial headache :-
Antworten
-
brain tumor
-
lumbar puncture
-
constipation and alcohol
-
otitis media
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.