link
Bookmarks
Anatomy of the Pelvic Floor
Rania Farouk El Sayed, MD, PhD
To access 4,300 diagnoses written by the world's leading experts in radiology, please log in or subscribe.Subscribe

TERMINOLOGY

  • Abbreviations

    • Arcus tendineus levator ani (ATLA)
    • Arcus tendineus fascia pelvis (ATFP)
  • Definitions

    • Pelvic floor
      • Pelvic diaphragm
      • Sphincter mechanism of lower urinary tract
      • Upper and lower vaginal support
      • Internal and external anal sphincter
    • Pelvic floor muscles (a.k.a. pelvic diaphragm)
      • Dome-shaped muscular sheet separating pelvic cavity above from perineal region below
        • Supports abdominal and pelvic viscera
        • Maintains urinary and fecal continence
        • Allows voiding, defecation, sexual activity, and childbirth

Bony Pelvis and Pelvic Ligaments

  • Bony Pelvis

    • Pelvic Ligaments

      • Pelvic Walls

        Topographic MR Anatomy of Pelvic Diaphragm

        • Puborectalis Muscle

          • Iliococcygeus Muscle

            • Levator Plate

              Approaches for Functional Description of Pelvic Floor

              • Classic 3-Compartment Approach

                • Multilayered System Approach

                  • Functional 3-Part Pelvic Supporting Systems Approach

                    Multilayered System Approach

                    • Supportive Connective Tissue

                      • 1st Layer: Endopelvic Fascia

                        • 2nd Layer: Pelvic Diaphragm

                          • 3rd Layer: Urogenital Diaphragm

                            • 4th Layer: Perineum

                              Clinical Implications

                              • Pelvic Floor Muscle and Endopelvic Fascial Interaction

                                Selected References

                                1. El Sayed RF: Magnetic resonance imaging of the female pelvic floor: anatomy overview, indications, and imaging protocols. Radiol Clin North Am. 58(2):291-303, 2020
                                2. Eickmeyer SM: Anatomy and physiology of the pelvic floor. Phys Med Rehabil Clin N Am. 28(3):455-60, 2017
                                3. Khatri G et al: MR imaging of the pelvic floor. Magn Reson Imaging Clin N Am. 25(3):457-80, 2017
                                Related Anatomy
                                Loading...
                                Related Differential Diagnoses
                                Loading...
                                References
                                Tables

                                Tables

                                TERMINOLOGY

                                • Abbreviations

                                  • Arcus tendineus levator ani (ATLA)
                                  • Arcus tendineus fascia pelvis (ATFP)
                                • Definitions

                                  • Pelvic floor
                                    • Pelvic diaphragm
                                    • Sphincter mechanism of lower urinary tract
                                    • Upper and lower vaginal support
                                    • Internal and external anal sphincter
                                  • Pelvic floor muscles (a.k.a. pelvic diaphragm)
                                    • Dome-shaped muscular sheet separating pelvic cavity above from perineal region below
                                      • Supports abdominal and pelvic viscera
                                      • Maintains urinary and fecal continence
                                      • Allows voiding, defecation, sexual activity, and childbirth

                                Bony Pelvis and Pelvic Ligaments

                                • Bony Pelvis

                                  • Pelvic Ligaments

                                    • Pelvic Walls

                                      Topographic MR Anatomy of Pelvic Diaphragm

                                      • Puborectalis Muscle

                                        • Iliococcygeus Muscle

                                          • Levator Plate

                                            Approaches for Functional Description of Pelvic Floor

                                            • Classic 3-Compartment Approach

                                              • Multilayered System Approach

                                                • Functional 3-Part Pelvic Supporting Systems Approach

                                                  Multilayered System Approach

                                                  • Supportive Connective Tissue

                                                    • 1st Layer: Endopelvic Fascia

                                                      • 2nd Layer: Pelvic Diaphragm

                                                        • 3rd Layer: Urogenital Diaphragm

                                                          • 4th Layer: Perineum

                                                            Clinical Implications

                                                            • Pelvic Floor Muscle and Endopelvic Fascial Interaction

                                                              Selected References

                                                              1. El Sayed RF: Magnetic resonance imaging of the female pelvic floor: anatomy overview, indications, and imaging protocols. Radiol Clin North Am. 58(2):291-303, 2020
                                                              2. Eickmeyer SM: Anatomy and physiology of the pelvic floor. Phys Med Rehabil Clin N Am. 28(3):455-60, 2017
                                                              3. Khatri G et al: MR imaging of the pelvic floor. Magn Reson Imaging Clin N Am. 25(3):457-80, 2017