Question

GABA is the primary neurotransmitter that underlies synaptic inhibition. GABA mostly

a. brings the postsynaptic cell to the sodium equilibrium potential
b. brings the postsynaptic cell to the chloride equilibrium potential
c. exclusively works through metabotropic mechanisms
d. all of the above
e. none of the above

Answer 1

b. brings the postsynaptic cell to the chloride equilibrium potential

Step-by-step explanation:

Gamma-aminobutyric acid (GABA) is one of the most important neurotransmitters, chemicals that brain cells use to communicate with each other. In fact, it is the most frequent inhibitory neurotransmitter. Inhibiting neurotransmitters decrease the chances that a nerve impulse will be triggered.

The main function of GABA as an inhibitory neurotransmitter is to slow down brain activity. It is also involved in vision, sleep, muscle tone and motor control.

It is widely distributed both inside and outside the central nervous system. It is found in the intestines, stomach, bladder, lungs, liver, skin, spleen, muscles, kidneys, pancreas and reproductive organs.

In vertebrates, GABA leads the postsynaptic cell to the chloride equilibrium potential. Through it, chloride ions flow out of the cell to achieve equilibrium.