Neurodevelopment Flashcards

1
Q

what is neuronal proliferation?

A

creation of new neuron by massive mitosis

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2
Q

what is neuronal migration

A

distribution of precursor cells to areas where they will ultimately be

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3
Q

what is neuronal determination

A

when it is decides what kind of cell it will be (glia or neurons)

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4
Q

what is neuronal differentiation

A

the process of becoming the type of neuron meant to be

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5
Q

what is synaptogenesis

A

create massive connections among neurons by increasing arborizations

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6
Q

what is pruning

A

get rid of connections that are not needed

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7
Q

when does neuronal proliferation happen?

A

prior to birth: starts around week 5 and extends well into 3rd trimester

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8
Q

process of creating neurons before birth

A

corticogenesis

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9
Q

the ventricular zone is

A

where neurons are created

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10
Q

what do radial glial cells do?

A

provide the path through which neurons travel to where they must be

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11
Q

how is the cortex built

A

inside out

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12
Q

neurons that are created close by in the VT …

A

will be close by in the cortex

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13
Q

when does synaptogenesis happen

A

starts before birth (second trimester) and peaks around 15 months after birth

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14
Q

lobes that fully develop until mid twenties

A

frontal lobes

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15
Q

brain becomes … as we age

A

thinner

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16
Q

when does pruning happen

A

spans around 10 years of development

17
Q

what is plasticity

A

brain changes by neurogenesis and reorganizations