Chapter 4:Physical Development of Infants and Toddlers

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1

Cephalocaudal trend

: growth from head to toe

2

Proximodistal trend

: growth from the center outward

3

Glial cell

The brain increases dramatically in the first 2 years.

4

Number of neuron in human brain at birth

Billion

5

Nerve cells

cells that work through electrical and chemical processes. Grow 250,00 a minute prenatally!

6

What is the neuron functions from the surrounding environment continue to establish new synapses

stimulate

7

neuron stimulate

establish new synapses

8

How many synapses at age 2?

trillion synapses

9

Synaptic Pruning

Cells that are seldom stimulated soon die off in a process

10

Fragile X syndrome

Loss of connections increases brain power/cognitive complexity