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Ultrastructure of Spinal Pia Mater

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Atlas of Functional Anatomy for Regional Anesthesia and Pain Medicine

Abstract

Pia mater is the innermost of the three meningeal membranes, closely surrounding the brain, the spinal cord, and the portion of spinal nerve roots extending towards their exit across the dura mater. A cellular layer and a subpial compartment shape the structure of the pia mater. The cellular layer is made up of flat, overlapping pial cells with amorphous, fundamental substance interposed among them. The surface of the cellular plane appears smooth and bright under scanning electron microscopy (SEM). Transmission electron microscopy shows that the cellular component is about three to five pial cells thick at the medullary level and two to three cells thick at the level of the nerve roots. The subpial compartment is limited by a pial cellular layer and a basal membrane and is filled with collagen fibers oriented in various directions.

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References

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Author information

Authors and Affiliations

  1. Department of Anesthesiology, Madrid-Montepríncipe University Hospital, Madrid, Spain

    Fabiola Machés MD & Miguel Angel Reina MD, PhD

  2. Department of Clinical Medical Sciences and Institute of Applied Molecular Medicine, School of Medicine, University of CEU San Pablo, Madrid, Spain

    Miguel Angel Reina MD, PhD

  3. Department of Anesthesiology, Roswell Park Cancer Institute, Buffalo, NY, USA

    Oscar De León Casasola MD

  4. Department of Anesthesiology, University at Buffalo, School of Medicine and Biomedical Sciences, Buffalo, NY, USA

    Oscar De León Casasola MD

Authors
  1. Fabiola Machés MD
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  2. Miguel Angel Reina MD, PhD
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  3. Oscar De León Casasola MD
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Corresponding author

Correspondence to Fabiola Machés MD .

Editor information

Editors and Affiliations

  1. Department of Anesthesiology, Department of Clinical Medical Sciences and Institute of Applied Molecular Medicine, School of Medicine, University of CEU San Pablo, Madrid, Spain, and Madrid-Montepríncipe University Hospital, Madrid, Spain

    Miguel Angel Reina

  2. Department of Surgical Specialties, Department of Anesthesia, Critical Care, and Pain Management, General University Hospital, School of Medicine, University of Valencia, Valencia, Spain

    José Antonio De Andrés

  3. College of Physicians and Surgeons, Department of Anesthesiology, St. Luke’s-Roosevelt Hospital Center, New York School of Regional, Anesthesia (NYSORA), New York, NY, USA, and Columbia University, New York, New York, USA

    Admir Hadzic

  4. Laboratory of Surgical NeuroAnatomy, Human Anatomy and Embryology Unit, School of Medicine, University of Barcelona, Barcelona, Spain

    Alberto Prats-Galino

  5. Department of Anesthesiology and Critical Care, Human Anatomy and Embryology Unit, School of Medicine, University of Barcelona, Barcelona, Spain, and Clinic Hospital, Barcelona, Spain

    Xavier Sala-Blanch

  6. Discipline of Anesthesiology, The University of Queensland and Royal Brisbane and Women’s Hospital, Brisbane, Queensland, Australia

    André A.J. van Zundert

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© 2015 Springer International Publishing Switzerland

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Machés, F., Reina, M.A., De León Casasola, O. (2015). Ultrastructure of Spinal Pia Mater. In: Reina, M., De Andrés, J., Hadzic, A., Prats-Galino, A., Sala-Blanch, X., van Zundert, A. (eds) Atlas of Functional Anatomy for Regional Anesthesia and Pain Medicine. Springer, Cham. https://doi.org/10.1007/978-3-319-09522-6_25

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  • DOI: https://doi.org/10.1007/978-3-319-09522-6_25

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-09521-9

  • Online ISBN: 978-3-319-09522-6

  • eBook Packages: MedicineMedicine (R0)

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