#summary Rectum
@@[Home] -> [BiologicalLifeResearch] -> [BrainAreaTEA] -> [BrainRegionTARGET_TEA_RECTUM]
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This page covers biological details of component Rectum.
Region is part of aHuman target integrated biological model.

  * *Top-down path to region*: Target -> Human Effectors (aHumanEffectors) -> [BrainRegionTARGET_TEA_RECTUM Rectum] (TARGET.TEA.RECTUM) (see [OverallMindMaps Mind Maps])
  * *Type*: effector
  * *Quality*: L0
  * *Brain area*: [BrainAreaTEA Effector Area] (TEA)
  * *Area circuit*: TARGET.TEA.RECTUM Circuit (TARGET.TEA.RECTUM.CIRCUIT)
  * *Role*: targeteffector
  * *Function*: Removal of undigested materials from the digestive tract through defecation
(generated)
= Components =
(generated)


*Component items*:
  * *Rectum sensory data* (*rectum-sensory-data*)
   * Rectum - large intestine visceral receptors (large-intestine-visceral-receptors -> [BrainRegionLPC_PN_SG_LDRG LPC.PN.SG.LDRG]): sensations of fullness and urgency, pain
  * *Rectum autonomic* (*rectum-autonomic*)
   * [http://en.wikipedia.org/wiki/Sphincter_ani_internus_muscle Rectum - sphincter ani internus muscle, parasympathetic] ([BrainRegionLAC_PN_PSYM_PPG LAC.PN.PSYM.PPG] -> [HumanMusclesTorso sphincter-ani-internus-muscle-parasympathetic]): keep the anal canal and anus closed, aids in the expulsion of the feces, inhibit contraction
   * [http://en.wikipedia.org/wiki/Sphincter_ani_internus_muscle Rectum - sphincter ani internus muscle, sympathetic] ([BrainRegionLAC_PN_SYM_IMG LAC.PN.SYM.IMG] -> [HumanMusclesTorso sphincter-ani-internus-muscle-sympathetic]): stimulate and maintain internal anal sphincter contraction
  * *Rectum conscious flexors* (*rectum-conscious-flexors*)
   * [http://en.wikipedia.org/wiki/Transversus_perinei_superficialis_muscle Rectum - superficial transverse perineal muscle] ([BrainRegionLPC_SC_VH_ONF LPC.SC.VH.ONF] -> [HumanMusclesTorso superficial-transverse-perineal-muscle]): fixation of central tendon of perineum, support of pelvic floor
   * [http://en.wikipedia.org/wiki/Corrugator_cutis_ani_muscle Rectum - corrugator cutis ani muscle] ([BrainRegionLPC_SC_VH_ONF LPC.SC.VH.ONF] -> [HumanMusclesTorso 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] ([BrainRegionLPC_SC_VH_ONF LPC.SC.VH.ONF] -> [HumanMusclesTorso sphincter-ani-externus-muscle]): keep the anal canal and anus closed, aids in the expulsion of the feces
  * *Rectum conscious extensors* (*rectum-conscious-extensors*)
   * [http://en.wikipedia.org/wiki/Puborectalis_muscle Rectum - puborectalis muscle] ([BrainRegionLPC_SC_VH_VM LPC.SC.VH.VM] -> [HumanMusclesTorso puborectalis-muscle]): inhibit defecation
   * [http://en.wikipedia.org/wiki/Coccygeus_muscle Rectum - coccygeus muscle] ([BrainRegionLPC_SC_VH_VM LPC.SC.VH.VM] -> [HumanMusclesTorso 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] ([BrainRegionLPC_SC_VH_VM LPC.SC.VH.VM] -> [HumanMusclesTorso iliococcygeus-muscle]): supports the viscera in pelvic cavity

= Connectivity =
(generated)


http://ahuman.org/svn/ahwiki/images/dot/TARGET.TEA.RECTUM.dot.png

*Inbound Region Connections:*

|| *Source Area* || *Source Region* || *Source Name* || *Type* || *Role* || *Reference* ||
|| [BrainAreaLAC LAC] || [BrainRegionLAC_PN_PSYM_PPG LAC.PN.PSYM.PPG] || Pelvic Peripheral Ganglion || sphincter-ani-internus-muscle-parasympathetic || (none) ||(unknown reference) ||
||  || [BrainRegionLAC_PN_SYM_IMG LAC.PN.SYM.IMG] || Inferior Mesenteric Ganglion || sphincter-ani-internus-muscle-sympathetic || (none) ||(unknown reference) ||
|| [BrainAreaLPC LPC] || [BrainRegionLPC_SC_VH_ONF LPC.SC.VH.ONF] || Onuf's Nucleus || corrugator-cutis-ani-muscle || (none) ||(unknown reference) ||
||  || [BrainRegionLPC_SC_VH_VM LPC.SC.VH.VM] || Ventromedial Nucleus || coccygeus-muscle || (none) ||(unknown reference) ||

*Outbound Region Connections:*

|| *Target Area* || *Target Region* || *Target Name* || *Type* || *Role* || *Reference* ||
|| [BrainAreaLPC LPC] || [BrainRegionLPC_PN_SG_LDRG LPC.PN.SG.LDRG] || Lower Dorsal Root Ganglion || large-intestine-visceral-receptors || (none) || (unknown reference) ||

= Thirdparty Circuits =
(generated)

  * no circuits defined

= References =
(generated)

  * no references defined