The Nervous System
Development 1
Development 2
Disorders
Review from Week 1

100

The two main divisions of the human nervous system.
What are the peripheral and central nervous systems?

100

What are the two parts of the central nervous system?
What is brain and spinal cord?

100

The process by which the neural network is trimmed down to its highest efficiency.
What is paring?

100

When you hear voices...
What is schizophrenia?

100

A chemical released at the synapse.
What is a neurotransmitter?

200

The point at which two different neurons communicate chemically.
What is a synapse?

200

The approximate age at which the brain reaches its full adult development.
What is 25 years old?

200

These are turned on or off in order to direct specialization of neurons (these are found in all cells of the body)
What are genes?

200

A spectrum disorder that involves impaired social interaction and communication, and restricted and repetitive behavior
What is autism?

200

The 'little brain', behind the brain that is involved in the fine tuning of motor movement.
What is the cerebellum?

300

The two major cell types in the mature nervous system.
What are neurons and glial cells?

300

The ability for the brain to adapt and change throughout an organism's life.
What is plasticity?

300

The three major divisions of the animal brain, that initially develop from the neural tube in the embryo.
What are forebrain, midbrain, hindbrain?

300

A disorder that is thought to originate from mutations in genes that regulate migration.
What is epilepsy?

300

What is a common excitatory neurotransmitter?
What is glutamate?

400

The germ layer that develops into skin and neural tissue.
What is the ectoderm?

400

The enlargement in the axon's tip that follows chemical signals to direct axon growth.
What are growth cones?

400

The time after conception at which the nervous system begins to develop.
What is three weeks?

400

A degenerative neural disorder whose symptoms are tremors and difficulty in initiating movement.
What is Parkinson's Disease?

400

The tree-like projections at the top of a neuron.
What is a dendrite?

500

The number of neurons in the brain
What is 100 billion?

500

The place newly produced neurons migrate from.
What is the ventricular zone of the neural tube?

500

Programmed cell death
What is apoptosis?

500

A disease that affects the myelin sheath of neurons, making it less insulating and thus affecting motor movement.
What is Multiple Sclerosis?

500

The small junctions within the myelin sheath that allow for rapid conduction of action potentials.
What are Nodes of Ranvier?