Figure 2. Pathogenesis of migraine and the role of CGRP.

BNST: bed nucleus of stria terminalis; LH; lateral hypothalamus; PAG; periaqueductal gray; Pir: piriform cortex; PVN: paraventricular hypothalamic nucleus; SPG: sphenopalatine ganglion; SSN: superior salivatory nucleus; TCC: trigeminal cervical complex; TG: trigeminal ganglion; RVM: rostral ventromedial medulla; CGRP: calcitonin gene related peptide

Image Credit: Authors; parts of the illustration are made using content from smart.servier.com