Activated sodium channels and deactivated potassium channels occur during
depolarization
1st order spinal neuron in the spinothalamic tract
dorsal root ganglia
archispinothalamic transport
deep aching pain
archispinothalamic 3rd order neurons synapse at
MRF-PAG area, IL, hypothalamus limbic system
spinal trigeminal transports pain sensation from
face
1st order neuron of medial lemniscus pathway
posterior root ganglia
neospinothalamic tract transport
sharp cutting pain, cool/cold temperature
paleospinothalamic tract transport
dull burning pain
3rd order neuron of main sensory trigeminal pathway
VPM, postcentral gyrus
a lesion of VPM will impact all the following sensations except
deep aching pain
brodmann areas 1 and 2 are in
SC I
inactivated sodium channels and activated potassium channels occur during
repolarization
activation of both potassium and sodium channels occur during
hyperpolarization
both sodium and potassium channels are deactivated during
resting state
if a nerve membrane suddenly became equally permeable to both Na+ and K+, the membrane potential would
approach a value of about 0 mV
drug X results in both a gradual decrease in the amplitude of individual action potentials and a depolarization:
blocking the (Na+- K+) pump
an isolated nerve muscle exposed to extracellular Ca2+ would be associated with all of the following but
amplitude of MEPPs
neuroglia differ from neurons in several general ways except
form synapses
which of the following processes dictate the amount of neurotransmitter released from a nerve ending
neurotransmitter synthesis
according to the descending pain suppression theory
pain stimuli activate descending fibers in the dorsolateral fasciculus
Mr. John Thomas experiences visceral pain in the lung. All of the following carry this nociceptive information EXCEPT
neospinothalamic tract
Sharp localized pain is transmitted by
neospinothalamic tract
cell bodies of first order pelvic visceral pain fibers are found in
dorsal root ganglion
which of the following account for the ability of rods to detect and signal light at lower illumination level than cones
the rod projections are denser than the cone projections
which of the basal ganglia nuclei receive direct cortical imput
caudate and putamen
the spinocerebellum contains
vermis and intermediate zone of the anterior and posterior lobes
the postcommissural fornix projects to which structure?
mamillary bodies
which structure is NOT part of the Papez circuit?
ventral nucleus of the thalamus
a 50-year old patient with recent damage to the hippocampus from a stroke would have all of the following deficits EXCEPT
difficulty recalling a childhood memory
classical conditioning is an example of
implicit memory