NEUROSCIENCE EXAM SET 1
QUESTIONS WITH CORRECT
ANSWERS
The voltage-gated sodium channel opens quickly, but then __ about 1 msec after it
opens. It cannot reopen until the membrane potential goes back to the resting value.
The colatge-gated potassium channel opens slowly, about 1 msec after it is
stimulated, but does not ___. - Answer-inactivates(closes).
inactivate.
Which of the following currents occurs first(fastest) in the action potential? - Answer-
Sodium.
Place the components of the action potential in the correct order: - Answer-1. Rising
phase.
2. Overshoot.
3. Falling phase.
4. Undershoot (after hyper polarization).
The neurotransmitters/neuromodulators we can find in presynaptic vesicles or dense
core vesicles may include: - Answer-Amino acids, amines, and peptides.
Compared with chemical synapses, electrical synapses: - Answer-Transmit
electrochemical messengers (ions) bidirectionally.
What ion is primarily responsible for exocytosis at the axon terminal? - Answer-Ca++
Synaptic vesicles are recycled through the process of: - Answer-Endocytosis
Which of the following presynaptic events are in correct chronological order? -
Answer-Action potential reaches axon terminal, voltage gated calcium channel ope,
exocytosis, diffusionof neurotransmitter.
The entry of chloride (Cl-) ions through a transmitter gated ion channel will result in
a/an: - Answer-IPSP
___ are proteins found on the synaptic vesicle which aid in the process of
exocytosis. - Answer-v-SNARES
The quantity shown here as λ, where the PSP declines to 37% (1/e), of its initial
value, it termed the: - Answer-length constant
Strychnine is a glycine: - Answer-antagonist
The second messenger illustrated here is: - Answer-cAMP
, The meninx which lies closest to the skull is the __. The one in the middle is the__.
The innermost one, indistinguishable from the surface of the brain, is the__. -
Answer-Dura matter.
Arachnoid matter.
Pia matter.
Korbinian Brodmann based his eponymous map on which characteristics of the
brain? - Answer-The cytoarchitecture.
The structures which derive from the ___ are listed below.
olfactory bulb
cerebral cortex
basal telencephalon
corpus callosum
cortical white matter
internal capsule - Answer-Telencephalon.
The ____divides the frontal lobe from the parietal lobe.
The____divides the frontal and parietal lobes from the temporal lobe.
The _____ is anterior to the central sulcus.
The ___ is posterior to the central sulcus. - Answer-Central sulcus.
Lateral (sylvian) fissure.
Precentral gyrus.
Postcentral gyrus.
There are ___ layers of cerebral cortex. - Answer-6
Which of the following is part of the ventral stream? (mark all that apply) - Answer-
V4, IT
Which of the following is part of the dorsal stream? (mark all that apply) - Answer-MT
All available evidence suggests that "grandmother cells" exist. - Answer-False
Place the elements pf the magnocellular (motion) pathway in their correct order. -
Answer-M-type ganglion cells, magnocellular LGN cells, Layer IVCa, Layer IVB
Place the elements of the blob(color) pathway in their correct order. - Answer-nonM-
nonP ganglion cells, koniocellular LGN cells, blobs.
Place the elements of the parvocellular (shape) pathways in their correct order. -
Answer-P-type ganglion cells, parcocellular LGN cells, layer IVCB, interblobs
This cell is exhibiting: - Answer-orientation selectivity
The Neuron Doctrine is: neurons communicate by contact, not continuity. Who came
up with the idea of the Neuron Doctrine? - Answer-Santiago Ramón y Cajal
QUESTIONS WITH CORRECT
ANSWERS
The voltage-gated sodium channel opens quickly, but then __ about 1 msec after it
opens. It cannot reopen until the membrane potential goes back to the resting value.
The colatge-gated potassium channel opens slowly, about 1 msec after it is
stimulated, but does not ___. - Answer-inactivates(closes).
inactivate.
Which of the following currents occurs first(fastest) in the action potential? - Answer-
Sodium.
Place the components of the action potential in the correct order: - Answer-1. Rising
phase.
2. Overshoot.
3. Falling phase.
4. Undershoot (after hyper polarization).
The neurotransmitters/neuromodulators we can find in presynaptic vesicles or dense
core vesicles may include: - Answer-Amino acids, amines, and peptides.
Compared with chemical synapses, electrical synapses: - Answer-Transmit
electrochemical messengers (ions) bidirectionally.
What ion is primarily responsible for exocytosis at the axon terminal? - Answer-Ca++
Synaptic vesicles are recycled through the process of: - Answer-Endocytosis
Which of the following presynaptic events are in correct chronological order? -
Answer-Action potential reaches axon terminal, voltage gated calcium channel ope,
exocytosis, diffusionof neurotransmitter.
The entry of chloride (Cl-) ions through a transmitter gated ion channel will result in
a/an: - Answer-IPSP
___ are proteins found on the synaptic vesicle which aid in the process of
exocytosis. - Answer-v-SNARES
The quantity shown here as λ, where the PSP declines to 37% (1/e), of its initial
value, it termed the: - Answer-length constant
Strychnine is a glycine: - Answer-antagonist
The second messenger illustrated here is: - Answer-cAMP
, The meninx which lies closest to the skull is the __. The one in the middle is the__.
The innermost one, indistinguishable from the surface of the brain, is the__. -
Answer-Dura matter.
Arachnoid matter.
Pia matter.
Korbinian Brodmann based his eponymous map on which characteristics of the
brain? - Answer-The cytoarchitecture.
The structures which derive from the ___ are listed below.
olfactory bulb
cerebral cortex
basal telencephalon
corpus callosum
cortical white matter
internal capsule - Answer-Telencephalon.
The ____divides the frontal lobe from the parietal lobe.
The____divides the frontal and parietal lobes from the temporal lobe.
The _____ is anterior to the central sulcus.
The ___ is posterior to the central sulcus. - Answer-Central sulcus.
Lateral (sylvian) fissure.
Precentral gyrus.
Postcentral gyrus.
There are ___ layers of cerebral cortex. - Answer-6
Which of the following is part of the ventral stream? (mark all that apply) - Answer-
V4, IT
Which of the following is part of the dorsal stream? (mark all that apply) - Answer-MT
All available evidence suggests that "grandmother cells" exist. - Answer-False
Place the elements pf the magnocellular (motion) pathway in their correct order. -
Answer-M-type ganglion cells, magnocellular LGN cells, Layer IVCa, Layer IVB
Place the elements of the blob(color) pathway in their correct order. - Answer-nonM-
nonP ganglion cells, koniocellular LGN cells, blobs.
Place the elements of the parvocellular (shape) pathways in their correct order. -
Answer-P-type ganglion cells, parcocellular LGN cells, layer IVCB, interblobs
This cell is exhibiting: - Answer-orientation selectivity
The Neuron Doctrine is: neurons communicate by contact, not continuity. Who came
up with the idea of the Neuron Doctrine? - Answer-Santiago Ramón y Cajal
