BrainRegionTARGET TEA RECTUM

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) -> Rectum (TARGET.TEA.RECTUM) (see Mind Maps)
• Type: effector
• Brain area: Effector Area
• Role: unknown
• 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 -> LPC.PN.SG.LDRG): sensations of fullness and urgency, pain
• Rectum autonomic (rectum-autonomic)
  • [- sphincter ani internus muscle, parasympathetic] (LAC.PN.PSYM.PPG -> sphincter-ani-internus-muscle-parasympathetic): keep the anal canal and anus closed, aids in the expulsion of the feces, inhibit contraction
  • [- sphincter ani internus muscle, sympathetic] (LAC.PN.SYM.IMG -> sphincter-ani-internus-muscle-sympathetic): stimulate and maintain internal anal sphincter contraction
• Rectum conscious flexors (rectum-conscious-flexors)
  • [- superficial transverse perineal muscle] (LPC.SC.VH.ONF -> superficial-transverse-perineal-muscle): fixation of central tendon of perineum, support of pelvic floor
  • [- corrugator cutis ani muscle] (LPC.SC.VH.ONF -> corrugator-cutis-ani-muscle): raises the skin into ridges around the margin of the anus
  • [- sphincter ani externus muscle] (LPC.SC.VH.ONF -> sphincter-ani-externus-muscle): keep the anal canal and anus closed, aids in the expulsion of the feces
• Rectum conscious extensors (rectum-conscious-extensors)
  • [- puborectalis muscle] (LPC.SC.VH.VM -> puborectalis-muscle): inhibit defecation
  • [- coccygeus muscle] (LPC.SC.VH.VM -> coccygeus-muscle): pulls coccyx forward after defecation, closing in the back part of the outlet of the pelvis
  • [- iliococcygeus muscle] (LPC.SC.VH.VM -> iliococcygeus-muscle): supports the viscera in pelvic cavity

Connectivity

(generated)

• Inbound Region Connections:*

|| Source Area || Source Region || Source Name || Type || Reference || || LAC || LAC.PN.PSYM.PPG || Pelvic Peripheral Ganglion || sphincter-ani-internus-muscle-parasympathetic || (unknown reference) || || || LAC.PN.SYM.IMG || Inferior Mesenteric Ganglion || sphincter-ani-internus-muscle-sympathetic || (unknown reference) || || LPC || LPC.SC.VH.ONF || Onuf's Nucleus || corrugator-cutis-ani-muscle || (unknown reference) || || || LPC.SC.VH.VM || Ventromedial Nucleus || coccygeus-muscle || (unknown reference) ||

• Outbound Region Connections:*

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

Thirdparty Circuits

(generated)

• no circuits defined

References

(generated)

• no references defined