#summary Human Spinal Lumbosacral Nerves - Genital and Gastrointestinal
[Home] -> [BiologicalLifeResearch] -> [HumanNerves] -> [HumanNervesSpinalGenital]
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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:
* http://medical-dictionary.thefreedictionary.com/nerve (name base)
* http://www.oluwoleogunranti.com/course/course1/nerves (MA reference)
= LUMBOSACRAL NERVES - GENITAL AND GASTROINTESTINAL =
(generated)
*motor nuclei/ganglia*:
* [BrainRegionLAC_PN_SYM_IMG 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}
* [BrainRegionLPC_SC_VH_ONF 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}
* [BrainRegionLAC_PN_PSYM_PPG 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}
* [BrainRegionLPC_SC_VH_VM Ventromedial Nucleus,LPC.SC.VH.VM]; NERVES={nerves to coccygeus and levator ani muscles}
*sensory nuclei/ganglia*:
* [BrainRegionLPC_PN_SG_LDRG 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}
* [BrainRegionLPC_PN_SG_UDRG Upper Dorsal Root Ganglion,LPC.PN.SG.UDRG]; NERVES={splanchnic nerves, pelvic, nipple}
*nerves*:
* *Autonomic nerves*; MODALITY={sympathetic motor, parasympathetic motor, autonomic sensory}
* 
* *splanchnic nerves*; MODALITY={sympathetic motor, parasympathetic motor, autonomic sensory}
* *splanchnic nerves, lumbar* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/ne306.htm 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:[http://www.oluwoleogunranti.com/course/course1/nerves/ne295.htm 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={[http://en.wikipedia.org/wiki/Cervix Genitalia - cervix] - female - produces cervical mucus that changes in consistency during the menstrual cycle to prevent or promote pregnancy}
* 
* fiber: GVE, types={B-motor}, endings={MPA-SPAV}, chain={[BrainRegionLAC_SC_IZ_IML Intermediolateral Nucleus,LAC.SC.IZ.IML] -> [BrainRegionLAC_PN_SYM_IMG Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *left hypogastric nerve, lubricate*; DISTRIBUTION={greater vestibular (Bartholin) glands in females and the bulbourethral (Cowper) glands in males}; MODALITY={sympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Bartholin%27s_gland Genitalia - bartholin gland] - secretes mucus to lubricate the vagina; [http://en.wikipedia.org/wiki/Bulbourethral_gland Genitalia - cowper gland] - produces a clear, salty, viscous secretion known as pre-ejaculate, homologous to Bartholin glands in females; [http://en.wikipedia.org/wiki/Prostate Genitalia - prostate gland] - secrete a slightly alkaline fluid, milky or white in appearance, constitutes 50-75 percents of the volume of the semen along with spermatozoa and seminal vesicle fluid; [http://en.wikipedia.org/wiki/Skene%27s_gland Genitalia - skenes gland] - cause female ejaculation and G-Spot orgasms}
* 
* fiber: GVE, types={B-motor}, endings={MPA-SPAV}, chain={[BrainRegionLAC_SC_IZ_IML Intermediolateral Nucleus,LAC.SC.IZ.IML] -> [BrainRegionLAC_PN_SYM_IMG Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *left hypogastric nerve, prostatic*; DISTRIBUTION={male: emission is the result of peristaltic contractions of the ampullary portion of the vas deferens, the seminal vesicles, and the prostatic smooth muscles}; MODALITY={sympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Prostate Genitalia - vas deferens] - male - emission (prior to ejaculation), contracts, propelling sperm forward}
* 
* fiber: GVE, types={B-motor}, endings={MPA-SPAV}, chain={[BrainRegionLAC_SC_IZ_IML Intermediolateral Nucleus,LAC.SC.IZ.IML] -> [BrainRegionLAC_PN_SYM_IMG Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *left hypogastric nerve, ureteric* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/ne327.htm URETERIC PLEXUS]; MA:[http://www.oluwoleogunranti.com/course/course1/nerves/ne329.htm UTERINE NERVES]); DISTRIBUTION={ureteric smooth muscles}; MODALITY={sympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Detrusor_urinae_muscle Ureter - detrusor urinae muscle, sympathetic] - sympathetic relaxes, to store urine; [http://en.wikipedia.org/wiki/Internal_sphincter_muscle_of_urethra Ureter - internal sphincter muscle of urethra, sympathetic] - sympathetic contracts the muscle}
* 
* fiber: GVE, types={B-motor}, endings={MPA-SPAV}, chain={[BrainRegionLAC_SC_IZ_IML Intermediolateral Nucleus,LAC.SC.IZ.IML] -> [BrainRegionLAC_PN_SYM_IMG Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG] -> [BrainRegionTARGET_TEA_URETER Ureter,TARGET.TEA.URETER]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_URETER Ureter,TARGET.TEA.URETER] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *left hypogastric nerve, uterovaginal* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/ne330.htm UTEROVAGINAL PLEXUS]; Plexus of Frankenhauser); DISTRIBUTION={walls of the vagina, uterus}; MODALITY={sympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Uterus Genitalia - uterus, sympathetic contractors] - female - contraction of smooth muscles of myometrium, decreased blood flow, loss of erection; [http://en.wikipedia.org/wiki/Vagina Genitalia - vagina, sympathetic vasoconstrictors] - female - vasoconstriction of fibromuscular tube, loss of erection}
* 
* fiber: GVE, types={B-motor}, endings={MPA-SPAV}, chain={[BrainRegionLAC_SC_IZ_IML Intermediolateral Nucleus,LAC.SC.IZ.IML] -> [BrainRegionLAC_PN_SYM_IMG Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *right hypogastric nerve* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/ne295.htm HYPOGASTRIC NERVE]); ORIGIN={Right hypogastric plexus (L1-L5)}; DISTRIBUTION={smooth internal anal sphincter muscle}; MODALITY={sympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Sphincter_ani_internus_muscle Rectum - sphincter ani internus muscle, sympathetic] - stimulate and maintain internal anal sphincter contraction}
* 
* fiber: GVE, types={B-motor}, endings={MPA-SPAV}, chain={[BrainRegionLAC_SC_IZ_IML Intermediolateral Nucleus,LAC.SC.IZ.IML] -> [BrainRegionLAC_PN_SYM_IMG Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG] -> [BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *splanchnic nerves, pelvic* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/ne102.htm PELVIC SPLANCHNIC NERVES]); ORIGIN={sacral PLEXUS S2-S4}; BRANCHES={to penis/clitoris/vagina, to other pelvic structures (urinary bladder, rectum, anus, sigmoid and descending colon, terminal transverse colon, uterus and uterine tubes)}; DISTRIBUTION={leaving sacral plexus, they enter inferior hypogastric plexus and supply pelvic organs; mating and conception}; MODALITY={parasympathetic motor, autonomic sensory}
* *splanchnic nerves, pelvic, nipple*; DISTRIBUTION={breast, smooth muscles of the nipple}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Nipple Breast - nipple smooth muscles] - female - erection of nipples due to contraction of smooth muscle}
* 
* fiber: GVE, types={B-motor}, endings={MPA-PC}, chain={[BrainRegionLAC_SC_IZ_SPS Sacral Parasympathetic Nucleus,LAC.SC.IZ.SPS] -> [BrainRegionLAC_PN_PSYM_PPG Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG] -> [BrainRegionTARGET_TEA_BREAST Breast,TARGET.TEA.BREAST]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_BREAST Breast,TARGET.TEA.BREAST] -> [BrainRegionLPC_PN_SG_UDRG Upper Dorsal Root Ganglion,LPC.PN.SG.UDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *splanchnic nerves, pelvic, to penis/clitoris*; MODALITY={parasympathetic motor, autonomic sensory}
* fiber: GVE, types={B-motor}, endings={MPA-PC}, chain={[BrainRegionLAC_SC_IZ_SPS Sacral Parasympathetic Nucleus,LAC.SC.IZ.SPS] -> [BrainRegionLAC_PN_PSYM_PPG Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *cavernous nerves of clitoris*; ORIGIN={uterovaginal PLEXUS, pelvic splanchnic nerve}; DISTRIBUTION={erectile tissue of clitoris}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Corpus_cavernosum_clitoridis Genitalia - corpus cavernosum clitoridis] - clitoral erection; simultaneously the ischiocavernosus and bulbospongiosus muscles compress the veins of the corpora cavernosa restricting the egress and circulation of this blood}
* 
* *cavernous nerves of penis*; ORIGIN={prostatic PLEXUS, pelvic splanchnic nerve}; DISTRIBUTION={erectile tissue of penis}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Corpus_cavernosum_penis 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}
* 
* *splanchnic nerves, pelvic, to rectum*; ORIGIN={mesenteric plexus, inferior}; DISTRIBUTION={rectum, anus}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Sphincter_ani_internus_muscle Rectum - sphincter ani internus muscle, parasympathetic] - keep the anal canal and anus closed, aids in the expulsion of the feces, inhibit contraction}
* 
* fiber: GVE, types={B-motor}, endings={MPA-PC}, chain={[BrainRegionLAC_SC_IZ_SPS Sacral Parasympathetic Nucleus,LAC.SC.IZ.SPS] -> [BrainRegionLAC_PN_PSYM_PPG Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG] -> [BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *splanchnic nerves, pelvic, to stomach*; ORIGIN={Auerbach's plexus, Meissner's plexus}; DISTRIBUTION={terminal transverse colon, descending colon, sigmoid colon}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Intestinal_gland Stomach - mucosal gastric glands] - acetylcholine activates muscarinic receptors cause an increase in gastric juice secretion; [http://en.wikipedia.org/wiki/Muscularis_mucosae Stomach - outer longitudinal and inner circular smooth muscles] - keep the mucosal surface and underlying glands in a constant state of gentle agitation to expel contents of glandular crypts and enhance contact between epithelium and the contents of the lumen}
* 
* fiber: GVE, types={B-motor}, endings={MPA-PC}, chain={[BrainRegionLAC_SC_IZ_SPS Sacral Parasympathetic Nucleus,LAC.SC.IZ.SPS] -> [BrainRegionLAC_PN_PSYM_PPG Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG] -> [BrainRegionTARGET_TEA_STOMACH Stomach,TARGET.TEA.STOMACH]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_STOMACH Stomach,TARGET.TEA.STOMACH] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *splanchnic nerves, pelvic, to urinary bladder*; ORIGIN={hypogastric plexus}; DISTRIBUTION={urinary bladder, uterus and uterine tubes; preganglionic axons exit from the ventral roots, travel in the pelvic nerves, pass through the hypogastric plexus, and synapse on postganglionic neurons located in the wall of the urinary bladder}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Detrusor_urinae_muscle Ureter - detrusor urinae muscle, parasympathetic] - parasympathetic contracts, to urinate; [http://en.wikipedia.org/wiki/Internal_sphincter_muscle_of_urethra Ureter - internal sphincter muscle of urethra, parasympathetic] - parasympathetic relaxes the muscle}
* 
* fiber: GVE, types={B-motor}, endings={MPA-PC}, chain={[BrainRegionLAC_SC_IZ_SPS Sacral Parasympathetic Nucleus,LAC.SC.IZ.SPS] -> [BrainRegionLAC_PN_PSYM_PPG Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG] -> [BrainRegionTARGET_TEA_URETER Ureter,TARGET.TEA.URETER]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_URETER Ureter,TARGET.TEA.URETER] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *splanchnic nerves, pelvic, uterovaginal*; ORIGIN={uterovaginal plexus}; DISTRIBUTION={uterus, vagina}; MODALITY={parasympathetic motor, autonomic sensory}; MUSCLES={[http://en.wikipedia.org/wiki/Uterus Genitalia - parasympathetic uterus vasodilators] - female - contraction of smooth muscles of myometrium, increased blood flow; [http://en.wikipedia.org/wiki/Vagina Genitalia - parasympathetic vaginal vasodilators] - female - contraction of smooth muscles of myometrium, increased blood flow}
* 
* fiber: GVE, types={B-motor}, endings={MPA-PC}, chain={[BrainRegionLAC_SC_IZ_SPS Sacral Parasympathetic Nucleus,LAC.SC.IZ.SPS] -> [BrainRegionLAC_PN_PSYM_PPG Pelvic Peripheral Ganglion,LAC.PN.PSYM.PPG] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* fiber: GVA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_IZ_IMM Intermediomedial Nucleus,LPC.SC.IZ.IMM]}
* *Genitalia nerves, somatic*; MODALITY={general sensory, flexor motor, sympathetic motor}
* fiber: GSA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_PH_LMG Lower Marginal Nucleus,LPC.SC.PH.LMG]}
* fiber: GSA, types={C-sensory}, endings={SFN}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_PH_LSG Lower Substantia Gelatinosa,LPC.SC.PH.LSG]}
* fiber: GSA, types={A-beta-sensory}, endings={SMECH}, chain={[BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_HL_GR Gracile Nucleus,LPC.HL.GR] -> [BrainRegionNCP_FD_TH_VPL Ventral Posterolateral Nucleus,NCP.FD.TH.VPL]}
* *genitofemoral nerve, genital* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne71.htm GENITOFEMORAL NERVE]); ORIGIN={lumbar PLEXUS (L1-L2)}; BRANCHES={genital}; DISTRIBUTION={cremaster muscle, skin of scrotum or labium majus}; MODALITY={general sensory, flexor motor, sympathetic motor}
* fiber: GSE, types={A-alpha-Ia-motor}, endings={MA}, chain={[BrainRegionLPC_SC_VH_ONF Onuf's Nucleus,LPC.SC.VH.ONF] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* *genitofemoral nerve, genital branch* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne207.htm GENITAL BRANCH OF GENITOFEMORAL NERVE]); ORIGIN={genitofemoral nerve (L1-L2)}; DISTRIBUTION={muscular branches to cremaster muscle (male only, raise and lower testes in order to regulate temperature of testes and promote spermatogenesis); cutaneous branches to skin of scrotum/male and labium majus/female, mons pubis/female}; MODALITY={general sensory, flexor motor, sympathetic motor}; MUSCLES={[http://en.wikipedia.org/wiki/Cremaster_muscle Genitalia - cremaster muscle] - raise and lower the scrotum, acts quickly, it is a reflex}
* 
* fiber: GVE, types={B-motor}, endings={MPA-SPAV}, chain={[BrainRegionLAC_SC_IZ_IML Intermediolateral Nucleus,LAC.SC.IZ.IML] -> [BrainRegionLAC_PN_SYM_IMG Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* *iliohypogastric nerve* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne42.htm ILIOHYPOGASTRIC NERVE]); ORIGIN={lumbar PLEXUS L1 (sometimes T12)}; BRANCHES={lateral and anterior cutaneous branches}; DISTRIBUTION={skin above the pubis and over the lateral side of the buttock, and occasionally the pyramidal muscle}; MODALITY={general sensory}
* 
* *ilioinguinal nerve* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne41.htm 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}
* 
* *scrotal nerves, anterior*; ORIGIN={male, ilioinguinal nerve}; DISTRIBUTION={skin of anterior scrotal region}; MODALITY={general sensory}
* 
* *pudendal nerve, genitalia* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne96.htm 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}
* *dorsal nerve of clitoris/penis*; DISTRIBUTION={deep transverse muscle of perineum, sphincter muscle of urethra, corpus cavernosum of clitoris, and skin, prepuce, and glans of clitoris}; MODALITY={general sensory, flexor motor}
* fiber: GSE, types={A-alpha-Ia-motor}, endings={MA}, chain={[BrainRegionLPC_SC_VH_ONF Onuf's Nucleus,LPC.SC.VH.ONF] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* *dorsal nerve of clitoris* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne101.htm DORSAL NERVE OF PENIS OR CLITORIS]); ORIGIN={pudendal nerve}; MODALITY={general sensory, flexor motor}; MUSCLES={[http://en.wikipedia.org/wiki/Transversus_perinei_profundus_muscle Genitalia - deep transverse perineal muscle, clitoris] - fixation of central tendon of perineum, support of pelvic floor, expulsion of semen in males and last drops of urine in both sexes}
* 
* *dorsal nerve of penis* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne101.htm DORSAL NERVE OF PENIS OR CLITORIS]); ORIGIN={pudendal nerve}; MODALITY={general sensory, flexor motor}; MUSCLES={[http://en.wikipedia.org/wiki/Transversus_perinei_profundus_muscle Genitalia - deep transverse perineal muscle, penis] - fixation of central tendon of perineum, support of pelvic floor, expulsion of semen in males and last drops of urine in both sexes}
* 
* *nerve to urethral bulb* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne100.htm NERVE TO URETHRAL BULB]); ORIGIN={Pudendal nerve/nerve to bulbospongiosus}; BRANCHES={mucosal and cutaneous/visceral}; DISTRIBUTION={male/bulb of penis, female/clitoral bulbs - erectile tissue}; MODALITY={general sensory}
* 
* *perineal nerve, genitalia* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/perinealS4.htm PERINEAL BRANCH OF S4]; MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne98.htm PERINEAL NERVE]); ORIGIN={pudendal nerve}; BRANCHES={muscular branches and posterior scrotal or labial nerves}; DISTRIBUTION={muscular branches supply bulbocavernous, ischiocavernous, bulb of the penis; scrotal (labial) nerves supply scrotum or labium majus}; MODALITY={general sensory, flexor motor, sympathetic motor}
* *perineal nerve, deep branch* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/posteriorlabial.htm POSTERIOR LABIAL NERVES]); ORIGIN={pudendal nerve}; DISTRIBUTION={muscles of the perineum - bulbospongiosus, ischiocavernosus, sphincter urethrae}; MODALITY={general sensory, flexor motor}; MUSCLES={[http://en.wikipedia.org/wiki/Bulbospongiosus_muscle Genitalia - bulbospongiosus muscle] - in males, empties the urethra; in females, clenches the vagina; [http://en.wikipedia.org/wiki/Ischiocavernosus_muscle Genitalia - ischiocavernosus muscle] - stabilize the erect penis or (in females) tense the vagina during orgasm; [http://en.wikipedia.org/wiki/External_sphincter_muscle_of_female_urethra Ureter - external sphincter muscle of female urethra] - control urination, constricts urethra, maintain urinary continence; [http://en.wikipedia.org/wiki/External_sphincter_muscle_of_male_urethra Ureter - external sphincter muscle of male urethra] - control urination, constricts urethra, maintain urinary continence}
* 
* fiber: GSE, types={A-alpha-Ia-motor}, endings={MA}, chain={[BrainRegionLPC_SC_VH_ONF Onuf's Nucleus,LPC.SC.VH.ONF] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* *perineal nerve, superficial branch*; MODALITY={general sensory, sympathetic motor}
* *labial nerve, posterior* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/posteriorlabial.htm POSTERIOR LABIAL NERVES]); ORIGIN={pudendal nerve}; DISTRIBUTION={labium majus}; MODALITY={general sensory}
* 
* *scrotal nerve, posterior* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne99.htm POSTERIOR SCROTAL NERVES]); ORIGIN={pudendal nerve}; DISTRIBUTION={skin of scrotum}; MODALITY={general sensory, sympathetic motor}; MUSCLES={[http://en.wikipedia.org/wiki/Dartos 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.}
* 
* fiber: GVE, types={B-motor}, endings={MPA-SPAV}, chain={[BrainRegionLAC_SC_IZ_IML Intermediolateral Nucleus,LAC.SC.IZ.IML] -> [BrainRegionLAC_PN_SYM_IMG Inferior Mesenteric Ganglion,LAC.PN.SYM.IMG] -> [BrainRegionTARGET_TEA_GENITALIA Genitalia,TARGET.TEA.GENITALIA]}
* *Rectum nerves, somatic*; MODALITY={general sensory, flexor motor, extensor motor}
* fiber: GSA, types={A-delta-sensory}, endings={SAD}, chain={[BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_PH_LMG Lower Marginal Nucleus,LPC.SC.PH.LMG]}
* fiber: GSA, types={C-sensory}, endings={SFN}, chain={[BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_SC_PH_LSG Lower Substantia Gelatinosa,LPC.SC.PH.LSG]}
* fiber: GSA, types={A-beta-sensory}, endings={SMECH}, chain={[BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM] -> [BrainRegionLPC_PN_SG_LDRG Lower Dorsal Root Ganglion,LPC.PN.SG.LDRG] -> [BrainRegionLPC_HL_GR Gracile Nucleus,LPC.HL.GR] -> [BrainRegionNCP_FD_TH_VPL Ventral Posterolateral Nucleus,NCP.FD.TH.VPL]}
* *pudendal nerve, rectum* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne96.htm 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, extensor motor}
* *inferior rectal nerve* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne97.htm INFERIOR RECTAL NERVE]; anal nerves, inferior; rectal nerves, inferior hemorrhoidal nerves); ORIGIN={pudendal nerve, or independently from sacral PLEXUS, S5}; BRANCHES={cutaneous branches mainly, but muscular branches to external anal sphincter}; DISTRIBUTION={supplying perianal skin and lower part of anal canal; external anal sphincter muscle, skin around anus, and lining of anal canal up to pectinate line}; MODALITY={general sensory, flexor motor}; MUSCLES={[http://en.wikipedia.org/wiki/Corrugator_cutis_ani_muscle Rectum - corrugator cutis ani muscle] - raises the skin into ridges around the margin of the anus; [http://en.wikipedia.org/wiki/Sphincter_ani_externus_muscle Rectum - sphincter ani externus muscle] - keep the anal canal and anus closed, aids in the expulsion of the feces}
* 
* fiber: GSE, types={A-alpha-Ia-motor}, endings={MA}, chain={[BrainRegionLPC_SC_VH_ONF Onuf's Nucleus,LPC.SC.VH.ONF] -> [BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM]}
* *perineal nerve, rectum* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/perinealS4.htm PERINEAL BRANCH OF S4]; MA:[http://www.oluwoleogunranti.com/course/course1/nerves/Ne98.htm PERINEAL NERVE]); ORIGIN={pudendal nerve, S4}; BRANCHES={muscular branches and posterior scrotal or labial nerves}; DISTRIBUTION={muscular branches supply superficial transverse perineal muscles and levator ani muscles}; MODALITY={general sensory, flexor motor, extensor motor}
* *nerve to superficial transverse perineal*; DISTRIBUTION={pelvic surface of levator ani}; MODALITY={general sensory, flexor motor}; MUSCLES={[http://en.wikipedia.org/wiki/Transversus_perinei_superficialis_muscle Rectum - superficial transverse perineal muscle] - Fixation of central tendon of perineum, support of pelvic floor}
* 
* fiber: GSE, types={A-alpha-Ia-motor}, endings={MA}, chain={[BrainRegionLPC_SC_VH_ONF Onuf's Nucleus,LPC.SC.VH.ONF] -> [BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM]}
* *nerves to coccygeus and levator ani muscles* (MA:[http://www.oluwoleogunranti.com/course/course1/nerves/nervelevatorani.htm NERVE TO LEVATOR ANI]); DISTRIBUTION={motor innervation to coccygeus and levator ani muscles}; MODALITY={general sensory, extensor motor}; MUSCLES={[http://en.wikipedia.org/wiki/Pubococcygeus_muscle Genitalia - pubococcygeus muscle] - controls urine flow and contracts during orgasm; [http://en.wikipedia.org/wiki/Coccygeus_muscle Rectum - coccygeus muscle] - pulls coccyx forward after defecation, closing in the back part of the outlet of the pelvis; [http://en.wikipedia.org/wiki/Iliococcygeus_muscle Rectum - iliococcygeus muscle] - supports the viscera in pelvic cavity; [http://en.wikipedia.org/wiki/Puborectalis_muscle Rectum - puborectalis muscle] - inhibit defecation}
* 
* fiber: GSE, types={A-alpha-Ia-motor}, endings={MA}, chain={[BrainRegionLPC_SC_VH_VM Ventromedial Nucleus,LPC.SC.VH.VM] -> [BrainRegionTARGET_TEA_RECTUM Rectum,TARGET.TEA.RECTUM]}