cnim practice exam 1 questions amp answers rated a
cnim practice exam 1 questions
cnim practice exam 1 stuvia
ventral nerve roots answerslower motors neurons
glutamate answerswhich one of the fo
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CNIM PRACTICE EXAM 1 Questions &
Answers RATED A
Ventral Nerve Roots - ANSWERSLower motors neurons primarily exit the cord through
the:
1 dorsal nerve roots
2 ventral nerve roots
3 dorsal columns
4 dorsal root ganglia
Glutamate - ANSWERSWhich one of the following is an excitatory neurotransmitter?
1 GABA
2 Glutamate
3 Glycine
4 Phenylalanine
GABA - ANSWERSWhich one of the following is an inhibitory neurotransmitter?
1 GABA
2 Serotonin
3 Dopamine
4 Phenlalanine
the meninges - ANSWERSThe layers of protective tissue which surround the CNS are
called:
1 the ventricles
2 the meninges
3 Cerebrospinal fluid
4 The Skull
Central Sulcus - ANSWERSWhat separates the motor and sensory strips?
1 Sylvian Fissure
2 Central Sulcus
3 Frontal Sulcus
4 Sagittal Fissure
The Carotid Exchange - ANSWERSThe interconnecting blood vessels at the base of
the brain make up:
1 the circle of Willis
2 the Carotid exchange
3 the circle of Milford
4 the Perfect circle
,the left and right anterior cerebral arteries - ANSWERSThe Anterior Communicatinig
Artery connects which arteries?
1 It does not connect any arteries
2 The posterior Communicating Arteries
3 The left and right anterior cerebral arteries
4 the middle cerebral and the posterior cerebral arteries
the anterior cerebral artery - ANSWERSThe tibial nerve cortical SSEPs would be
affected by a stroke in which artery?
1 the middle cerebral artery
2 the anterior cerebral artery
3 the posterior cerebral artery
4 the inferior cerebral arteray
a major feeder vessel to the spinal cord - ANSWERSThe artery of Adamkiewicz is:
1 a major blood vessel supplying the brain
2 a major branch of the iliac arteries
3 a major feeding vessel to the kidneys
4 a major feeder vessel to the spinal cord
the fasciculus cuneatus - ANSWERSUpper extremity SSEPs transmit through which
spinal cord tract?
1 the spinothalamic tract
2 the lateral corticospinal tract
3 the fasciculus gracillis
4 the fasciculus cuneatus
Above the T1 vertebrae - ANSWERSThe C8 nerve root exits the spinal cord:
1 above the C8 vertebrae
2 below the C8 vertebrae
3 above the T1 vertebrae
4 there is no C8 nerve root
cauda equina - ANSWERSThe nerve roots that extend below the spinal cord make up
the:
1 cauda equina
2 spina bifida
3 Filum Terminale
4 Conus Medularis
C8-T1 - ANSWERSThe nerve root entry levels for the ulnar nerve are:
1 C1-4
2 C5-T1
3 C5-6
4 C8-T1
Sciatic - ANSWERSThe tibial and common peroneal nerves form from what nerve?
1 Sural
2 Saphenous
3 Femora
4 Sciatic
Abductor pollicis brevis - ANSWERSStimulation of the MN at the wrist will activate
which muscle?
1 Abductor digiti minimi
2 Abductor pollicis brevis
3 Biceps
4 Deltoid
Across the head of the fibula - ANSWERSStimulation of the peroneal nerve is
performed:
1 across the medial malleolus
2 across the lateral malleolus
3 across the head of the fibula
4 in the medial third of the antecubital space
the Sodium-Potassium pump - ANSWERSThe resting membrane potential of a neuron
is primarily maintained by:
1 passive diffusion of charged ions
2 the sodium-potassium pump
3 action potentials
4 the opening of sodium channels
-70mV inside the cell - ANSWERSA typical resting membrane potential of a neuron is:
1 +20 mV inside the cell
2 -20 mV inside the cell
3 +70 mV inside the cell
4 -70 mV inside the cell
Voltage-gated Sodium channels open - ANSWERSWhat is the initial event that occurs
when the action potential threshold of a neuron is reached?
1 The ATP pump shuts down
2 Voltage-gated Sodium channels open
3 Voltage-gated Sodium channels close
4 Sodium rapidly diffuses out of the cell
, Depolarization of the post-synaptic membrane - ANSWERSAn EPSP will cause what to
happen?
1 Depolarization of the post-synaptic membrane
2 Hyperpolarization of the post-synaptic membrane
3 Propagation of an action potential
4 Inhibition of all action potentials
Pumps K into the cell and Na out of the cell - ANSWERSThe Sodium-Potassium Pump:
1 Pumps Na into the cell and K out of the cell
2 Pumps both Na and K out of the cell
3 Pumps K into the cell and Na out of the cell
4 Pumps both Na and K into the cell
Its membrane potential based on the spatiotemporal summation of its excitatory and
inhibitory inputs - ANSWERSActivation of an action potential of a neuron will depend
on:
1 the efficiency of its Na-K pump
2 Its membrane potential based on the spatiotemporal summation of its excitatory and
inhibitory inputs
3 the number of Sodium channels in the membrane
4 the number of excitatory versus inhibitory synaptic connections
the lateral corticospinal tract - ANSWERSTranscranial motor evoked potentials transmit
primarily through which spinal cord tract?
1 the spinothalamic tract
2 the lateral corticospinal tract
3 the fasciculus gracilis
4 the fasciculus cuneatus
motor deficits - ANSWERSWhat is the most common result of anterior spinal artery
occlusion?
1 loss of Erb's point response
2 loss of N13
3 motor deficits
4 loss of proprioception
Diazepam - ANSWERSWhich of the following has the greatest effect on SSEP
monitoring?
1 Fentanyl
2 Diazepam
3 Pavulon
4 Sevoflurane
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