Chapter 3

Question 1

Neuron

Answer 1

one of billions nerve cells in the central nervous system, especially in the brain

Question 2

cortex

Answer 2

outer layer of the brain in humans & other mammals

Question 3

axon

Answer 3

a fiber that extends from a neuron and transmits electrochemical impulses from that neuron to the dendrites of other neurons

Question 4

dendrite

Answer 4

a fiber that extends from a neuron and receives electrochemical impulses transmitted from other neurons via their axons

Question 5

synapses

Answer 5

intersection between the axon of one neuron and the dendrites of other neuron

Question 6

gross motor skills

Answer 6

large body movements, such as walking & jumping

Question 7

fine motor skills

Answer 7

small body movements, such as drawing

Question 8

object permanece

Answer 8

the realization that objects still exist even if they can’t see or touch it

Question 9

babbling

Answer 9

extended repetition of certain syllables such as ba ba ba, begins between 6-9 months old

Question 10

Piaget

Answer 10

six stages of sensorimotor intelligence