Please Indicate Which Parts of the Pain Circuit Are Excitatory

question 2

Short Answer

Please indicate which parts of the pain circuit are excitatory (+)and which are inhibitory (-).
1._____
2._____
3._____
4._____

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Definitions:

Neutrons

Subatomic particles found in the nucleus of an atom, with no electric charge and a mass slightly greater than that of protons.

Protons

Positively charged subatomic particles found in the nucleus of an atom, contributing to the atom's mass and defining the element's atomic number.

Electrons

Negatively charged subatomic particles that orbit the nucleus of an atom, involved in electrical conduction and chemical bonding.

Buffer

A solution or compound that stabilizes the pH of a solution by adding or removing hydrogen ions.