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: 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 -> LPC.PN.SG.LDRG): sensations of fullness and urgency, pain
• Rectum autonomic (rectum-autonomic)
  • Rectum - 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
  • Rectum - 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)
  • Rectum - superficial transverse perineal muscle (LPC.SC.VH.ONF -> superficial-transverse-perineal-muscle): fixation of central tendon of perineum, support of pelvic floor
  • Rectum - corrugator cutis ani muscle (LPC.SC.VH.ONF -> corrugator-cutis-ani-muscle): raises the skin into ridges around the margin of the anus
  • Rectum - 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)
  • Rectum - puborectalis muscle (LPC.SC.VH.VM -> puborectalis-muscle): inhibit defecation
  • Rectum - coccygeus muscle (LPC.SC.VH.VM -> coccygeus-muscle): pulls coccyx forward after defecation, closing in the back part of the outlet of the pelvis
  • Rectum - 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

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• no circuits defined

References

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• no references defined