Voltage behavior along the irregular dendritic structure of morphologically and physiologically characterized vagal motoneurons in the guinea pig.

Intracellular recordings from neurons in the dorsal motor nucleus of the vagus (VM) obtained in the guinea pig brain stem slice preparation were used for both horse-radish peroxidase (HRP) labeling of the neurons and for measurements of their input resistance and time constant. Based on the physiological data and on the morphological reconstruction of the labeled cells, detailed steady-state and compartmental models of VM were built and utilized to estimate the range of membrane resistivity, membrane capacitance, and cytoplasm resistivity values and to explore the integrative properties of these cells