Fine structural distinction between ganglia of the outer and inner submucosal plexus in porcine small intestine.
Ultrastructural differences between ganglia of the plexus submucosus internus (Meissner; PSI) and plexus submucosus externus (Schabadasch; PSE) are described. Comparison revealed a different glia index (ratio glia per neuron) between the PSE (3:1) and the PSI (1:1), the arrangement of PSI neurons in compartments and the appearance of broad membrane-to-membrane appositions inside the compartments of the PSI. Structural and immunohistochemical differences between the two plexuses are discussed. In general, PSE neurons show a wider variety in size and shape than most of the PSI neurons.
Brehmer
A
A
Institute of Anatomy, University of Rostock, Germany.
Stach
W
W
Addicks
K
K
D000818:Animals; D007421:Intestine, Small / Q000294:innervation*; D008854:Microscopy, Electron; D009457:Neuroglia / Q000648:ultrastructure*; D009474:Neurons / Q000648:ultrastructure*; D013368:Submucous Plexus / Q000166:cytology*; D013552:Swine; D013569:Synapses / Q000648:ultrastructure