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2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt All about the Neuron The Mighty Brain Neurological Disorders Neuron Transmission Spinal Cord

Another name for a “nerve cell.”

What is a neuron?

The part of the neuron that brings information to the cell body.

What is a dendrite?

The part of the neuron that takes information away from the cell body.

What is the axon?

The junction between two neurons.

What is a synapse?

The explosion of electrical activity sent down an axon when a neuron sends information.

What is an action potential?

The part of the brain that helps maintain muscle tone and balance

What is the cerebellum?

The two main divisions of the nervous system.

What are the central nervous system and the peripheral nervous system?

Area of the brain responsible for thought, language and planning.

What is the cerebral cortex?

Connects the right and left hemispheres of the brain.

What is the corpus callosum?

The part of the brain that regulates heart rate, blood pressure, and swallowing.

What is the medulla oblongata?

Memory loss, dementia, depression, social withdrawal; plaques and tangles.

What are symptoms of Alzheimer’s disease?

Disease characterized by build up of fatty acids causing a depletion of myelin sheath.

What is adrenoleukodystrophy? ALD

The part of the brain initially affected by Alzheimer’s disease.

What is the diencephlon?

This drug blocks dopamine transport proteins allowing for a high level of dopamine to remain in synapse.

What is cocaine?

Weakness, paralysis, death of neurons in the motor cortex and spinal cord; named for a famous baseball player.

What is amyotrophic lateral sclerosis? (Lou Gehrig’s Disease)

This ion is highly concentrated outside of the axon membrane during resting state.

What is sodium?

Repolarization of the membrane occurs due to the action of this ion.

What is potassium?

This must be reached before an action potential is accomplished.

What is a threshold potential?

Scanning method that detects radioactive material that is injected or inhaled to produce an image of the brain. (measures glucose metabolism)

What is PET? (Positron Emission Tomography)

This uses ATP while re- establishing ions during the action potential.

What is a sodium/potassium pump?

This tract relays information to the brain.

What is ascending tract?

Associated with plexuses.

What are the spinal nerves?

Contains the cerebral spinal fluid.

What is the central canal?

The simplest type of nerve pathway in the nervous system.

What is a reflex arc?

The spinal cord is surrounded by this type of mater.

What is the pia mater?