280 - module 2 multiple choice - fixed
Many dendrites contain short outgrowths called spines that _____.
**********
The best thing about the Golgi stain is that it
???
The most recently understood type of glial cell is the _____, has a demonstrated role in producing oligodendrocytes
NG2 Cells
The major disadvantage of the protective blood-brain barrier is that ____
NOT SURE * NOT MANY CHEMICALS TOO EASY DIFFUSE
CNS is to PNS as oligodendrocytes are to
Swann cells
The neuron membrane includes
all of these are correct
In the neocortex, the layer divisions are based on ______ and the columns are divided on the basis of _________.
anatomy; function
Glial cells that form scar tissue and inhibit regrowth of axons in the CNS are
astrocytes
As a general rule, axons convey information ____
away from their own cell body
Neurons typically have one ____, but many ____.
axon; dendrites Question
The Golgi stain colors neurons
black
Purkinge cells are found exclusively in the ________________ cortex.
cerebellar
A dendritic spine is found _____
extending from the dendritic branches
radial glia __________
guide the migration of neurons during embryonic development
The 'glymphatic' system refers to recent research on the cycle of activity that physically removes daily waste from the __________ .
interstitial space
What do neurons have that other cells do not?
large, branching extensions
Molecules that can cross the blood-brain barrier without special transporters are usually ____.
lipid soluble molecules that can dissolve in the fats of the capillary walls
Glial cells whose function most closely resembles that of the immune system are called ____.
microglia
The theory proposed by Waldeyer in the late 1880's that the nervous system was made up of discrete cells was called ____________ .
neuron doctrine
Gaps in the insulating material that surrounds axons are known as ____
nodes of Ranvier
Which of the following are multipolar cortical neurons with long axons, apical dendrites, and triangular cell bodies
pyramidal cells
What is the main source of nutrition for vertebrate neurons?
glucose
The most numerous type of functional neuron is the ________________
interneuron
Santiago Ramon y Cajal closely examined many brain sections stained with the Golgi process and demonstrated that ____
neurons were seperate cells from one another
Neocortex layers contain two very different kinds of neurons: pyramidal cells and
none of these are correct
