Examlex
What can schools do to change children's attitudes toward the elderly?
All-Or-None Response
The principle that no variation exists in the strength of a single action potential; only a stimulus strong enough to depolarize the membrane to its critical threshold level results in transmission of an action potential.
Depolarized
A state in which the membrane potential of a neuron is less negative compared to the resting potential, easing the initiation of an action potential.
THC
Tetrahydrocannabinol, the principal psychoactive constituent of cannabis that affects the brain and alters mood or consciousness.
Psychoactive
Substances that, when taken, alter mood, perception, or brain function.
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