Cells of the CNS and Basic Orientation
1.Question 1
Please respond to the following set of 9 questions byidentifying the single BEST response item, not just a marginallycorrect choice, but the very BEST choice.
Of the following pairs of directional terms, which pairs containterms that define PERPENDICULAR (orthogonal) directions whenapplied to the identified region of the central nervous system?Select all that apply.
1 point
in the brainstem, ventral & anterior
in the brainstem, superior & anterior
in the forebrain, superior & rostral
in the forebrain, dorsal & superior
in the brainstem, superior & rostral
in the spinal cord, rostral & anterior
in the spinal cord, anterior & dorsal
2.Question 2
What type of cell serves as a macrophage in the central nervoussystem?
1 point
neuron
oligodendrocyte
microglia
ependymal cell
astrocyte
3.Question 3
What type of cell makes myelin in the central nervoussystem?
1 point
Schwann cell
astrocyte
B cell
endothelial cell
oligodendrocyte
neuron
4.Question 4
What type of cell contributes to the blood-brain barrier in thecentral nervous system?
1 point
T cell
microglia
Schwann cell
endothelial cell
ependymal cell
oligodendrocyte
5.Question 5
What type of cell in the central nervous system plays animportant role in the uptake and processing of neurotransmittersfrom synaptic clefts? Select all that apply.
1 point
ependymal cell
Schwann cell
neuron (at its presynaptic terminals)
T cell
oligodendrocyte
astrocyte
6.Question 6
Across different types of neurons, which metric of neuronal sizevaries the most in absolute magnitude (e.g., in cross-sectionaldiameter or total length)?
1 point
dendritic diameter
axonal diameter
numbers of primary dendrites
cell body volume
total axonal length
7.Question 7
What type of cell is recognized as the principal excitatoryneuron of the cerebral cortex?
1 point
astrocyte
oligodendrocyte
interneuron
pyramidal neuron
glial stem cell
8.Question 8
What is the predominant type of glial cell that is found inwhite matter in the central nervous system?
1 point
astrocyte
Schwann cell
neuron
oligodendrocyte
ependymal cell
9.Question 9
What is the predominant type of glial cell that is found in graymatter in the central nervous system?
1 point
astrocyte
microglia
endothelial cell
neuron
oligodendrocyte
