How does capsaicin act on nociceptors?
a) Capsaicin blocks the transmission of pain signals by inhibiting neurotransmitter release from nociceptors.
b) Capsaicin stimulates nociceptors and increases their sensitivity to pain stimuli.
c) Capsaicin desensitizes nociceptors by depleting neurotransmitter stores and reducing their responsiveness to pain stimuli.
d) Capsaicin activates endogenous pain modulation pathways, leading to the inhibition of nociceptor activity.
