A Neuron Is Stimulated, Which Changes Membrane Potential to the Point

question 33

Multiple Choice

A neuron is stimulated, which changes membrane potential to the point where voltage-gated Na⁺ channels open and begin depolarizing the cell. The neuron has reached

• A)recruitment.
• B)threshold.
• C)summation.
• D)tetanus.

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Definitions:

Heroin

An opioid drug derived from morphine, highly addictive and illegal, commonly associated with serious public health issues.

Morphine

An opioid medication derived from the opium poppy, used primarily to relieve severe pain by directly acting on the central nervous system.

Peyote Plant

The Peyote Plant is a small, spineless cactus with psychoactive alkaloids, most notably mescaline, used primarily in Native American ritual contexts.

Methadone

A synthetic opioid used primarily for drug addiction detoxification and maintenance therapy, especially in heroin addiction.