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Autonomic Nerves of the Pelvis 3D

  • Hypogastric Nerve
    • * Originates from lumbar splanchnic nerves (typically L1-L2).
    • * Descends into the pelvis, running along the anterior surface of the aorta.
    • * Contributes to the formation of the superior hypogastric plexus.
  • Superior Hypogastric Plexus
    • * Formed by the convergence of hypogastric nerves.
    • * Located near the sacral promontory, anterior to the bifurcation of the aorta.
    • * Sends sympathetic fibers to pelvic organs, including the bladder, rectum, and reproductive organs.

 

  • Inferior Hypogastric Plexus​​​​​​​
    • * Lies in the pelvic cavity, near the cervix in females and the base of the bladder in males.
    • * Receives contributions from both pelvic splanchnic nerves (parasympathetic) and hypogastric nerves (sympathetic).
    • * Provides autonomic innervation to pelvic viscera, including the bladder, uterus, and rectum.

 

  • Sacral Splanchnic Nerves​​​​​​​
    • * Arise from the sympathetic chain ganglia in the sacral region (typically S2-S4).
    • * Carry sympathetic fibers.
    • * Merge into the inferior hypogastric plexus or communicate with pelvic splanchnic nerves.

 

  • Pelvic Splanchnic Nerves​​​​​​​
    • * Originate from the anterior rami of spinal nerves S2 to S4.
    • * Contribute to the sacral plexus.
    • * Carry parasympathetic fibers that innervate pelvic organs, including the bladder, rectum, and reproductive organs.

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  • Hypogastric Nerve
    • * Originates from lumbar splanchnic nerves (typically L1-L2).
    • * Descends into the pelvis, running along the anterior surface of the aorta.
    • * Contributes to the formation of the superior hypogastric plexus.
  • Superior Hypogastric Plexus
    • * Formed by the convergence of hypogastric nerves.
    • * Located near the sacral promontory, anterior to the bifurcation of the aorta.
    • * Sends sympathetic fibers to pelvic organs, including the bladder, rectum, and reproductive organs.

 

  • Inferior Hypogastric Plexus​​​​​​​
    • * Lies in the pelvic cavity, near the cervix in females and the base of the bladder in males.
    • * Receives contributions from both pelvic splanchnic nerves (parasympathetic) and hypogastric nerves (sympathetic).
    • * Provides autonomic innervation to pelvic viscera, including the bladder, uterus, and rectum.

 

  • Sacral Splanchnic Nerves​​​​​​​
    • * Arise from the sympathetic chain ganglia in the sacral region (typically S2-S4).
    • * Carry sympathetic fibers.
    • * Merge into the inferior hypogastric plexus or communicate with pelvic splanchnic nerves.

 

  • Pelvic Splanchnic Nerves​​​​​​​
    • * Originate from the anterior rami of spinal nerves S2 to S4.
    • * Contribute to the sacral plexus.
    • * Carry parasympathetic fibers that innervate pelvic organs, including the bladder, rectum, and reproductive organs.

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