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All aboutthe Neuron

The MightyBrain

NeurologicalDisorders

NeuroscienceMethods

Come toYour Senses

Another name fora “nerve cell.”

What is a neuron?

The part of the neuron thatbrings 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 betweentwo neurons.

What is a synapse?

The explosion of electricalactivity sent down anaxon when a neuronsends information.

What is anaction potential?

The weight of the adulthuman brain.

What is about 3 poundsor 1.4 kilograms?

The two main divisionsof the nervous system.

What are thecentral nervous system

and the peripheralnervous system?

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

What is thecerebral cortex?

Connects the right and lefthemispheres of the brain.

What is thecorpus callosum?

Name of the man whosurvived after an iron rodwent through the frontallobe of his brain in 1848.

Who is Phineas Gage?

Memory loss,dementia,

depression,social withdrawal;

plaques and tangles.

What are symptoms ofAlzheimer’s disease?

Disease characterizedas an electrical“brainstorm.”

What is epilepsy?

Excessive daytimesleepiness, cataplexy,

sleep paralysis, hypnagogic hallucinations.

What are symptomsof narcolepsy?

Transmitted by ticks;joint pains, chills,

fever and headache.

What isLyme disease?

Weakness, paralysis,death of neurons in the

motor cortexand spinal cord; named fora famous baseball player.

What is amyotrophiclateral sclerosis?

(Lou Gehrig’s Disease)

General term for someone who studiesthe nervous system.

What is a neuroscientist?

Uses detection of radio frequency signals

produced by displaced radio waves in a magnetic field.

What is MRI?(Magnetic Resonance Imaging)

Electrical activity of the brain recorded with scalp

or brain electrodes.

What is an EEG? (Electroencephalography)

Scanning method that detects radioactive

material that is injected or inhaled to produce an image of the brain.

What is PET?(Positron Emission Tomography)

Brain scan that uses a series of X-ray beams

passed through the head.

What is a CT scan? (Computed Tomography Scan)

Another name forthe sense of sight.

What is vision?

Lobe of the brainimportant for hearing.

What is thetemporal lobe?

Sour, sweet, salty,bitter and umami.

What are the five basic tastes?

Free nerve endings,Pacinian corpuscles,

Ruffini endings.

What are sensoryreceptors in the skin?

Location ofphotoreceptors

in the eye.

What is the retina?