Awoman has presented to the emergency department after cutting her hand badly on the blade of a food processor. the pain that this woman is currently experiencing is the result of:
a) injury to woman's afferent fibers.
b) the release of gamma-aminobutyric acid (gaba) into
the woman's synapses.
c) the release of intracellular potassium into the woman's
hand.
d) activation of the woman's delta and c nociceptors.

d) activation of the woman's delta and C nociceptors.

Explanation:

Nociceptors are sensory receptors whose main function is to detect signals from inflicted tissue or threat of detriment to tissues and indirectly also respond to chemicals released from the damaged or affeted tissue. Nociceptors are found in the  free nerve endings of the skin. The pain that this woman is currently experiencing is the result of activation of the woman's delta and C nociceptors.

In Option B, the release of gamma-aminobutyric acid (GABA) into

the woman's synapses can help combat the pain caused by the nocireceptors.

In vertebrates, GABA acts at inhibitory neurotransmitter in the brain by binding to specific transmembrane receptors in the plasma membrane of both presynaptic and postsynaptic neurones . This  results in a negative change in the transmembrane potential, usually causing hyperpolarization(a change in a cell's membrane potential that makes it more negative). Gamma-aminobutyric acid works as a neurotransmitter in the central nervous system(CNS),thereby decreasing neuron activity and thus preventing them from hurting.

Complex regional pain syndrome (CRPS) is a enervating condition affecting the limbs that can be induced by trauma.  Therefore, the initiation of  (GABA) has  been effective in reducing pain while improving functionality and quality of life in patients with chronic.