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