Examlex
Psychologists distinguish among different levels of consciousness based solely on differences in brain activity.
Genes
Units of hereditary information composed of DNA. Genes help cells to reproduce themselves and manufacture the proteins that maintain life.
Myelin Sheath
A protective, fatty layer that surrounds the axons of many neurons, facilitating faster transmission of electrical impulses.
Axons
Long, slender projections of nerve cells that transmit electrical impulses away from the neuron's cell body.
Nerve Impulses
Electrical signals that travel along nerve fibers, enabling communication between the brain and different parts of the body.
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