A well-known local herbalist sells the neurotransmitter gamma-aminobutyric acid (GABA)as "the body's natural tranquilizer," stating that it helps to calm the central nervous system and prevent anxiety and stress-related messages from reaching the motor centers of the brain.This portrayal reflects GABA's ____.
A)inhibitory effect on brain activity
B)depolarizing properties
C)lack of hyperpolarization
D)excitatory effect on brain activity

Question

Quizplus · Accepted Answer

GABA is an inhibitory neurotransmitter, meaning that it decreases the activity of neurons in the brain. It is known to have a calming effect on the central nervous system and is often called the brain's natural tranquilizer. Therefore, the portrayal of GABA as preventing anxiety and stress-related messages from reaching the motor centers of the brain is reflective of its inhibitory properties. The other options (B, C, and D) are not accurate descriptions of GABA's effects on brain activity.

A Well-Known Local Herbalist Sells the Neurotransmitter Gamma-Aminobutyric Acid (GABA)as