Circulating CGRP comes from the perivascular nerves.
D000818:Animals; D001808:Blood Vessels / Q000294:innervation*; D015740:Calcitonin Gene-Related Peptide; D002211:Capsaicin / Q000494:pharmacology; D008297:Male; D009411:Nerve Endings / Q000378:metabolism*; D009419:Nerve Tissue Proteins / Q000097:blood* / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains
D009419:Nerve Tissue Proteins; D015740:Calcitonin Gene-Related Peptide; D002211:Capsaicin