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. Author manuscript; available in PMC: 2009 May 14.
Published in final edited form as: Cephalalgia. 2008 Jun 28;28(9):933–944. doi: 10.1111/j.1468-2982.2008.01635.x

Figure 2.

Figure 2

(A) Diaminobenzidene immunohistochemistry of 5HT1DR in cerebrovascular tissues. 5HT1DR LI is found in nerve fibres innervating dura mater and run parallel (arrowheads) and perpendicular (arrow) to the middle meningeal artery (MMA). (B) There is staining of both larger nerve trunks and smaller fibres (arrow) in the dura. 5HT1DR LI is found in nerve fibres innervating the external carotid arteries (C) and branches of the circle of Willis (D) also. There appears to be staining of fine terminal nerve fibres (arrowheads).