Brain
Eyes
Ears
Chemicals
Nervous System
100

The hemisphere of the brain that controls language in most people.

Left Hemisphere

100

The point where the optic nerve leaves the eye.

Blind spot

100

The snail-shaped organ in the inner ear.

Cochlea

100

Too much causes schizophrenia, Too little cause Parkinson’s disease.

Dopamine

100

The basic unit of the nervous system.

Neuron

200

Brain imaging technique that measures electrical activity of neurons, through placed on the scalp, called brain waves.

Electroencephalography (EEG)

200

Retinal receptors that function in daylight and allow color perception.

Cones

200

“Anvil” in the middle ear.

Incus

200

Similar in chemical shape to opiate drugs.

Endorphins

200

What the central nervous system can be divided into.

Brain and Spinal Cord

300

The lobe responsible for a human’s personality, executive functioning, and primary cortex.

Frontal Lobe

300

Binocular cue of perceiving depth based on image disparity from each eye.

Retinal Disparity

300

Connects the middle ear to the throat and helps equalize pressure.

Eustachian Tube

300

Too little causes depression, Too much causes mania.

Norepinephrine
300

Movement of Na into neuron.

Action Potential (Depolarization)

400

Language disorder caused by damage to parts of the brain that control speech and understanding of language.

Aphasia

400

The central focal point in the retina where cones cluster.

Fovea

400

Membrane that the stirrup presses against and transmits sound vibrations into fluid movement within the cochlea.

Oval window

400

Too little is seen in patients with Alzheimers.

Acetylcholine

400

Outside is more positive than inside.

Resting Potential (Polarization)

500

Operations that treat epilepsy by severing the corpus callosum.

Split-Brain Operations

500

The theory of three color receptors sensitive to red, green, and blue.

Young-Helmholtz trichromatic theory

500

Contains receptors and endolymph that help the body maintain its sense of balance.

Semicircular Canal

500

Mechanism that makes neurotransmitters inactive.

Enzymatic Degradation

500

Small but ineffectual potential caused by sub-threshold stimulation.

Graded Potential