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Related Concept Videos

Spinal Nerves: Plexus II01:21

Spinal Nerves: Plexus II

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The plexuses of the lower body include the lumbar, sacral, and coccygeal plexuses, which innervate the abdomen, pelvis, legs, and coccygeal region. These plexuses control the transmission of sensory information and coordinate motor functions of the lower body.
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Spinal nerves are pivotal conduits in the nervous system, bridging the central nervous system (CNS) with the peripheral nervous system (PNS). These nerves enable a complex communication network between the brain, spinal cord, and the rest of the body, facilitating sensory input, motor output, and autonomic functions.
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Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
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The spinal cord is the body’s major nerve tract of the central nervous system, communicating afferent sensory information from the periphery to the brain and efferent motor information from the brain to the body. The human spinal cord extends from the hole at the base of the skull, or foramen magnum, to the level of the first or second lumbar vertebra.
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Dissection of Pelvic Autonomic Ganglia and Associated Nerves in Male and Female Rats
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The Pelvic and Sacral Splanchnic Nerves - Identification by Dissection, Trajectory.

Ofelia-Costina Goidescu1, Iulian-Alexandru Dogaru1,2, Mihaly Enyedi2

  • 1Doctoral School, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.

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|December 21, 2022
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Preserving pelvic nerves during surgery is vital for organ function. Dissection clarifies the anatomy of pelvic splanchnic nerves, crucial for maintaining sexual and urinary functions.

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Area of Science:

  • Urology
  • Anatomy
  • Surgical Science

Background:

  • Modern pelvic surgery prioritizes nerve preservation for physiological function.
  • The inferior hypogastric plexus is key, receiving sympathetic and parasympathetic fibers.
  • Understanding nerve pathways is essential for maintaining pelvic organ and genital function.

Discussion:

  • Dissection revealed the origins, pathways, and distribution of pelvic splanchnic nerves.
  • Key anatomical relationships, particularly with internal iliac artery branches, were clarified.
  • Parasympathetic fibers originate from sacral nerves, forming the pelvic splanchnic nerves.

Key Insights:

  • Nerve-sparing pelvic surgery aims to conserve splanchnic nerves, hypogastric nerves, and inferior hypogastric plexuses.
  • Preservation ensures normal functioning of anatomical sphincters and genital organs.
  • Detailed knowledge of pelvic splanchnic nerve anatomy is critical for surgeons.

Outlook:

  • Further anatomical studies can refine surgical techniques.
  • Enhanced understanding may lead to improved patient outcomes in pelvic procedures.
  • Continued focus on neuroanatomy will advance nerve-sparing surgical principles.