BrainRegionTARGET TEA GENITALIA

Genitalia

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This page covers biological details of component Genitalia. Region is part of aHuman target integrated biological model.

• Top-down path to region: Target -> Human Effectors (aHumanEffectors) -> Genitalia (TARGET.TEA.GENITALIA) (see Mind Maps)
• Type: effector
• Brain area: Effector Area
• Role: unknown
• Function: Reproductive system

(generated)

Components

(generated)

• Component items*:
• Genitalia - sensations (genitalia-sensory)
  • Genitalia - utetovaginal visceral receptors (utetovaginal-visceral-receptors -> LPC.PN.SG.LDRG): sexual sensations
  • Genitalia - visceral sexual receptors (visceral-sexual-receptors -> LPC.PN.SG.LDRG): sexual sensations
• Genitalia - urination and support muscles (genitalia-urination)
  • [- bulbospongiosus muscle] (LPC.SC.VH.ONF -> bulbospongiosus-muscle): in males, empties the urethra; in females, clenches the vagina
  • [- pubococcygeus muscle] (LPC.SC.VH.VM -> pubococcygeus-muscle): controls urine flow and contracts during orgasm
• Genitalia - erection muscles (genitalia-erection)
  • [- ischiocavernosus muscle] (LPC.SC.VH.ONF -> ischiocavernosus-muscle): stabilize the erect penis or (in females) tense the vagina during orgasm
  • Genitalia - man erection muscles (genitalia-erection-man)
    • [- corpus cavernosum penis] (LAC.PN.PSYM.PPG -> 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
  • Genitalia - woman erection muscles (genitalia-erection-woman)
    • [- uterus, sympathetic contractors] (LAC.PN.SYM.IMG -> uterus-sympathetic): contraction of smooth muscles of myometrium, decreased blood flow, loss of erection
    • [- parasympathetic uterus vasodilators] (LAC.PN.PSYM.PPG -> uterus-parasympathetic): female - contraction of smooth muscles of myometrium, increased blood flow; sexual response by directing blood flow to the pelvis and to the external genitalia, including the ovaries, vagina, labia, and clitoris
    • [- vagina, sympathetic vasoconstrictors] (LAC.PN.SYM.IMG -> vagina-sympathetic): vasoconstriction of fibromuscular tube, loss of erection
    • [- parasympathetic vaginal vasodilators] (LAC.PN.PSYM.PPG -> vagina-parasympathetic): female - contraction of smooth muscles of myometrium, increased blood flow
    • [- corpus cavernosum clitoridis] (LAC.PN.PSYM.PPG -> 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
• Genitalia - ejaculation muscles and glands, pregnancy and lifecycle support (genitalia-ejaculation)
  • Genitalia - man ejaculation muscles and glands (genitalia-ejaculation-man)
    • [- cowper gland] (LAC.PN.SYM.IMG -> cowper-gland): produces a clear, salty, viscous secretion known as pre-ejaculate, homologous to Bartholin glands in females
    • [- prostate gland] (LAC.PN.SYM.IMG -> 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
    • [- vas deferens] (LAC.PN.SYM.IMG -> vas-deferens): male - emission (prior to ejaculation), contracts, propelling sperm forward
    • [- deep transverse perineal muscle, penis] (LPC.SC.VH.ONF -> 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
  • Genitalia - woman ejaculation muscles and glands (genitalia-ejaculation-woman)
    • [- bartholin gland] (LAC.PN.SYM.IMG -> bartholin-gland): secretes mucus to lubricate the vagina
    • [- skenes gland] (LAC.PN.SYM.IMG -> skenes-gland): cause female ejaculation and G-Spot orgasms
    • [- cervix] (LAC.PN.SYM.IMG -> cervix-gland): female - produces cervical mucus that changes in consistency during the menstrual cycle to prevent or promote pregnancy
    • [- deep transverse perineal muscle, clitoris] (LPC.SC.VH.ONF -> deep-transverse-perineal-muscle-clitoris): fixation of central tendon of perineum, support of pelvic floor and last drops of urine in both sexes
• Genitalia - scrotum muscles (genitalia-scrotum-muscles)
  • [- cremaster muscle] (LAC.PN.SYM.IMG -> cremaster-muscle): raise and lower the scrotum, acts quickly, it is a reflex
  • [- dartos muscle] (LAC.PN.SYM.IMG -> 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.

Connectivity

(generated)

• Inbound Region Connections:*

|| Source Area || Source Region || Source Name || Type || Reference || || LAC || LAC.PN.PSYM.PPG || Pelvic Peripheral Ganglion || corpus-cavernosum-clitoridis || (unknown reference) || || || LAC.PN.SYM.IMG || Inferior Mesenteric Ganglion || bartholin-gland || (unknown reference) || || LPC || LPC.SC.VH.ONF || Onuf's Nucleus || bulbospongiosus-muscle || (unknown reference) || || || LPC.SC.VH.VM || Ventromedial Nucleus || pubococcygeus-muscle || (unknown reference) ||

• Outbound Region Connections:*

|| Target Area || Target Region || Target Name || Type || Reference || || LPC || LPC.PN.SG.LDRG || Lower Dorsal Root Ganglion || utetovaginal-visceral-receptors || (unknown reference) ||

Thirdparty Circuits

(generated)

• no circuits defined

References

(generated)

• no references defined