HumanNervesSpinalGenital

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Human Spinal Lumbosacral Nerves - Genital and Gastrointestinal

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This page is intended to list lumbo-sacral spinal cord nerves of biological human, which connect mind to human limbs and visceral organs.

Coverage verified by:

LUMBOSACRAL NERVES - GENITAL AND GASTROINTESTINAL

(generated)

motor nuclei/ganglia:

  • Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG; NERVES={left hypogastric nerve, cervical; left hypogastric nerve, lubricate; left hypogastric nerve, prostatic; left hypogastric nerve, ureteric; left hypogastric nerve, uterovaginal; right hypogastric nerve; genitofemoral nerve, genital branch; scrotal nerve, posterior}
  • Onuf's Nucleus,LPC.SC.VH.ONF; NERVES={genitofemoral nerve, genital; dorsal nerve of clitoris/penis; perineal nerve, deep branch; inferior rectal nerve; nerve to superficial transverse perineal}
  • Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG; NERVES={splanchnic nerves, pelvic, nipple; splanchnic nerves, pelvic, to penis/clitoris; splanchnic nerves, pelvic, to rectum; splanchnic nerves, pelvic, to stomach; splanchnic nerves, pelvic, to urinary bladder; splanchnic nerves, pelvic, uterovaginal}
  • Ventromedial Nucleus,LPC.SC.VH.VM; NERVES={nerves to coccygeus and levator ani muscles}

sensory nuclei/ganglia:

  • Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG; NERVES={left hypogastric nerve, cervical; left hypogastric nerve, lubricate; left hypogastric nerve, prostatic; left hypogastric nerve, ureteric; left hypogastric nerve, uterovaginal; right hypogastric nerve; splanchnic nerves, pelvic, to penis/clitoris; splanchnic nerves, pelvic, to rectum; splanchnic nerves, pelvic, to stomach; splanchnic nerves, pelvic, to urinary bladder; splanchnic nerves, pelvic, uterovaginal; Genitalia nerves, somatic; Rectum nerves, somatic}
  • Upper Dorsal Root Ganglion,LPC.PN.SG.UDRG; NERVES={splanchnic nerves, pelvic, nipple}

nerves:

  • Autonomic nerves; MODALITY={sympathetic motor, parasympathetic motor, autonomic sensory}

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    • splanchnic nerves; MODALITY={sympathetic motor, parasympathetic motor, autonomic sensory}
      • splanchnic nerves, lumbar (MA:LUMBAR SPLANCHNIC NERVES); ORIGIN={lumbar sympathetic trunk, L1-L3}; DISTRIBUTION={upper nerves ones go to intermesenteric and adjacent plexuses, and lower ones descend to superior hypogastric plexus; sensory - pregnancy and nociception to IML, adds to pelvic nerve}; MODALITY={sympathetic motor, autonomic sensory}
        • left hypogastric nerve (MA:HYPOGASTRIC NERVE); ORIGIN={Left hypogastric plexus (L1-L5)}; MODALITY={sympathetic motor, autonomic sensory}
          • left hypogastric nerve, cervical; DISTRIBUTION={female: produces cervical mucus that changes in consistency during the menstrual cycle to prevent or promote pregnancy}; MODALITY={sympathetic motor, autonomic sensory}; MUSCLES={Genitalia - cervix - female - produces cervical mucus that changes in consistency during the menstrual cycle to prevent or promote pregnancy}

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          • cavernous nerves of penis; ORIGIN={prostatic PLEXUS, pelvic splanchnic nerve}; DISTRIBUTION={erectile tissue of penis}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={Genitalia - corpus cavernosum penis - penile erection; simultaneously the ischiocavernosus and bulbospongiosus muscles compress the veins of the corpora cavernosa restricting the egress and circulation of this blood}
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        • splanchnic nerves, pelvic, to rectum; ORIGIN={mesenteric plexus, inferior}; DISTRIBUTION={rectum, anus}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={Rectum - sphincter ani internus muscle, parasympathetic - keep the anal canal and anus closed, aids in the expulsion of the feces, inhibit contraction}

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    • ilioinguinal nerve (MA:ILIOINGUINAL NERVE); ORIGIN={lumbar PLEXUS L1 (sometimes T12); accompanies the spermatic cord through the inguinal canal}; BRANCHES={anterior scrotal or labial branches}; DISTRIBUTION={skin of scrotum or labia majora, and adjacent part of thigh}; MODALITY={general sensory}
      • labial nerves, anterior; ORIGIN={female, ilioinguinal nerve}; DISTRIBUTION={skin of anterior labial region of labia majora, and adjacent part of thigh}; MODALITY={general sensory}

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      • scrotal nerves, anterior; ORIGIN={male, ilioinguinal nerve}; DISTRIBUTION={skin of anterior scrotal region}; MODALITY={general sensory}

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    • pudendal nerve, genitalia (MA:PUDENDAL NERVE); ORIGIN={sacral PLEXUS (S2-S4)}; BRANCHES={enters pudendal canal, gives off inferior anal nerve, and then divides into perineal nerve and dorsal nerve of penis (clitoris)}; DISTRIBUTION={muscles, skin, and erectile tissue of perineum}; MODALITY={general sensory, flexor motor, sympathetic motor}

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          • scrotal nerve, posterior (MA:POSTERIOR SCROTAL NERVES); ORIGIN={pudendal nerve}; DISTRIBUTION={skin of scrotum}; MODALITY={general sensory, sympathetic motor}; MUSCLES={Genitalia - dartos muscle - corrugates the scrotum; contraction reduces the surface area available for heat loss, thus reducing heat loss and warming the testicles; expansion increases the surface area, promoting heat loss and thus cooling the testicles.}

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