Here, we describe a protocol for identifying phrenic motor neurons in mice after intrapleural delivery of fluorophore conjugated cholera toxin subunit beta. Two techniques are compared to inject the pleural cavity: transdiaphragmatic versus transthoracic approaches.
Vandeweerd, J., Hontoir, F., De Knoop, A., De Swert, K., Nicaise, C. Retrograde Neuroanatomical Tracing of Phrenic Motor Neurons in Mice. J. Vis. Exp. (132), e56758, doi:10.3791/56758 (2018).