Direct projections from the periaqueductal gray to the pontine micturition center (M-region). An anterograde and retrograde tracing study in the cat

@article{Blok1994DirectPF,
  title={Direct projections from the periaqueductal gray to the pontine micturition center (M-region). An anterograde and retrograde tracing study in the cat},
  author={Bertil F. M. Blok and Gert Holstege},
  journal={Neuroscience Letters},
  year={1994},
  volume={166},
  pages={93-96}
}

Ultrastructural evidence for a paucity of projections from the lumbosacral cord to the pontine micturition center or M‐region in the cat: A new concept for the organization of the micturition reflex with the periaqueductal gray as central relay

It was investigated in cats whether monosynaptic projections from lumbosacral neurons to the M‐region indeed exist, and it was demonstrated that the lateral part of the periaqueductal gray contains neurons projecting to theM‐region.

Afferent projections to the pontine micturition center in the cat

All other parts of the brain that influence micturition have no direct connection with the PMC, as indicated by results in 67 cats.

Direct projections from the lumbosacral spinal cord to Barrington's nucleus in the rat: A special reference to micturition reflex

Clear evidence is provided for a direct projection from the spinal parasympathetic and dorsal commissural nuclei to Barrington's nucleus that could subserve conveying bladder‐filling information from the lumbosacral cord to Barlington's nucleus in the micturition reflex of the rat.

Two pontine micturition centers in the cat are not interconnected directly: Implications for the central organization of micturition

The M and L‐regions have direct long fiber projections to the motoneurons of the bladder muscle and the external urethral sphincter, but they do not influence one another through direct pathways.

Micturition-suppressing region in the periaqueductal gray of the mesencephalon of the cat.

The results suggest that the dorsolateral margin of the rostral PAG includes the micturition-suppressing region that seems to have neural connections with the PMC.

Monosynaptic projections from the lateral periaqueductal gray to the nucleus retroambiguus in the rhesus monkey: Implications for vocalization and reproductive behavior

There exists a strong and direct PAG‐NRA pathway in the rhesus monkey and its lumbosacral projections are likely to be involved not only in vocalization but also in other behaviors, such as receptive posture.
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References

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