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. Author manuscript; available in PMC: 2007 Mar 20.
Published in final edited form as: Auton Neurosci. 2006 Apr 17;128(1-2):53–63. doi: 10.1016/j.autneu.2006.02.023

Fig. 5.

Fig. 5

Confocal images of (A), retrogradely labeled airway-related vagal preganglionic neurons (AVPNs) within the rNA, following microinjection of cholera toxin β subunit (CTb) tracer into the extrathoracic trachea; (B) β2-nAChR subunit immunoreactive neurons in the same field. (C) The merged (M) image showing the CTb colocalized with a β2-nAChR traits. (D) Total number of counted CTb labeled neurons and the number of the double labeled cells (CTb and β2-nAChR). Scale bar: 20μm.