Exam 9: Development of the Nervous System

If just one eye is deprived of light for several days early in life,the width of the associated ocular __________ in layer IV of primary visual cortex become narrower.

Functions of the prefrontal cortex include

The __________ and social skills of people with Williams syndrome are remarkable considering their poor intellectual development.

Studies have shown that about ______ new neurons are created each day in each hippocampus of humans.

In frogs,salamanders,and other simple vertebrates,retinal ganglion cells project primarily to the

The neural crest develops into the

In a classic experiment,Roe and colleagues (1990)caused the developing axons of ferret retinal ganglion cells of the visual system to synapse in the medial geniculate nuclei of the auditory system.Once the ferrets matured,their

Perseveration is the tendency to

The prefrontal cortex seems to play a role in

The pattern of migration of future neocortical neurons is referred to as

Discuss the developmental progression from totipotency,to pluripotency,to multipotency,to total specification.Why are embryonic stem cells so interesting to medical researchers?

If just one eye is deprived of input for a few days early in life,

After the formation of the neural tube,the number of cells destined to become part of the adult nervous system

Sperry's initial version of the chemoaffinity hypothesis of axon growth has difficulty accounting for

Growing axons follow the routes of axons already established by pioneer growth cones.They follow these first axons by a process known as __________.

Autism spectrum disorder (ASD)usually becomes apparent

In vitro,neurons will form synapses

Adult neural stem cells that eventually migrate to the olfactory bulbs are created at certain sites in the layer of cells lining the lateral cerebral __________.

The process of the growth of a fertilized egg into a mature nervous system is called

Synaptogenesis seems to depend on the presence of