Bio Midterm 2

Front 1

Process in development of neurons

Back 1

proliferation, migration, differentiation, mylination, synaptogenesis

Front 2

Proliferation

Back 2

—the production of new cells

Front 3

Migration

Back 3

—move toward their eventual destinations in the brain

Front 4

Differentiation

Back 4

—at first, a primitive neuron looks like any other cell, but then it
differentiates, forming the axon and dendrites that show its distinctive shape. The
axon grows first
neurons adapt to their location: if you transplant a young neuron it
develops the properties characteristic of its new location (children
immigrants analogy)

Front 5

myelination

Back 5

—process by which glia produce the insulating fatty sheaths that accelerate transmission in many axons (forms first in spinal cord) continues for decades

Front 6

Synaptogenesis

Back 6

—formation of synapses, continues throughout life

Front 7

Neural Darwinism

Back 7

—we start with more neurons and synapses than we keep; synapses form haphazardly, and then a selection process keeps some and rejects others

Front 8

nerve growth factor (NGF)

Back 8

a protein that promotes the survival and growth of the axon

Front 9

nerve growth factor (NGF)

Back 9

a protein that promotes the survival and growth of the axon