Nervous System
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Nervous System
Nov 3, 2009
The Sense of Smell
By:
Andy Luttrell
The olfactory system consists of a collection of odor receptors that send a message to the brain when they detect a smell. This is just one of the chemical senses.
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Nov 2, 2009
How the Ear Works
By:
Andy Luttrell
The cochlea, a structure in the inner ear, changes sound waves into electrical signals that get sent to the brain. The cochlea also determines the pitch of sounds.
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Oct 31, 2009
How Vision Works in the Brain
By:
Andy Luttrell
Once light enters the eye, its message is sent to a number of brain parts. These places in the brain construct pictures and tell the body how to respond.
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Oct 30, 2009
How Eyes Tell the Brain What They "See"
By:
Andy Luttrell
When light enters the eye, specific neurons in the retina must respond to the information and send a message to the brain. This is a process called "phototransduction."
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Oct 28, 2009
The Neurology of Pain Perception
By:
Andy Luttrell
Feelings of pain are processed differently than other senses. This article explains the basic neurological processing of pain, including pain receptors and brain regions.
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Oct 11, 2009
Sensory Receptors
By:
Diane Ursu
Sensory receptors send impulses to the brain regarding the environment in and around the body.
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Sep 14, 2009
How the Retina Works
By:
Kenneth Rosen
The ability to see begins with light entering the eye and the processing of visual signals by a highly interconnected series of specialized neurons.
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