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. Author manuscript; available in PMC: 2011 Oct 31.
Published in final edited form as: Respir Physiol Neurobiol. 2010 May 8;173(3):264–273. doi: 10.1016/j.resp.2010.04.024

Figure 5.

Figure 5

A. Dorsal view of the anuran brain, indicating the level of midbrain section illustrated below. Adapted from Gargaglioni and Branco (2009). B, C and D. Photomicrographs of the isthmus region showing the catecholaminergic cell bodies identified by tyrosine hydroxylase immunohistochemical staining of the brains. Detailed (higher magnification) morphology of these neurons is shown in B and C. Scale bars: 200 μm in A, 100 μm in B, and 50 μm in C. Adapted from Noronha-de-Souza et al. (2004). Abbreviations: Aq, Aqueduct of Sylvius; LC, Locus coeruleus; NI, nucleus isthmi; Otec, optic tectum. LC, locus coeruleus; IV, fourth ventricle.