logging in or signing up rectum anal canal drras1278 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Copy Does not support media & animations WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 5134 Category: Education License: All Rights Reserved Like it (4) Dislike it (0) Added: December 03, 2008 This Presentation is Public Favorites: 3 Presentation Description enjy Comments Posting comment... By: rohancool123 (27 month(s) ago) can u please email bariya.rohan@gmail.com. please..... nice ppt Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript ANATOMY RECTUM &ANAL CANAL : ANATOMY RECTUM &ANAL CANAL Length-12 cm ANATOMY/CURVATURES : ANATOMY/CURVATURES Lateral curvatures-3 A P curves-2 INTERIOR OF RECTUM : INTERIOR OF RECTUM HOUSTON VALVES 1ST-S3vertebra,lt / rt 2nd-(lt) 3rd-most imp & constant (rt)…S5 vertebra 4th-(lt) Functions Support wt of faeces RELATIONS OF RECTUM : RELATIONS OF RECTUM Peritoneal Ant/post/lat Post relations : Post relations Artery supply : Artery supply SRA-rt-ant & post lt MRA- IRA- OTHERS- VENOUS DRAINAGE : VENOUS DRAINAGE importance Lymphatic drainage : Lymphatic drainage NERVE SUPPLY : NERVE SUPPLY SYMP-sup hypogastric plexus(L1,L2) Parasymp-pelvic splanchnic n. Anal canal anatomy : Anal canal anatomy Anatomical- dentate line-anal verge Surgical- anorectal jn-anal verge Slide 17: Anorectal ring -puborectalis -deep ext sphincter -conj long muscle -int sphincter Helps for continence Anorectal angle (80-90 degrees) between rectum and anal canal (maintained by continuous tonic activity of the puborectalis muscle) muscles : muscles PUBORECTALIS -continence -supplied by somatic nerves -funct ii ext anal shincters Ext anal sphincters-vol muscle -supplied by pudendal n. -deep,sup,subcut Int anal sphincters-invol muscle -supplied by autonomic n Long muscle- Int structure : Int structure Dentate line White line of hiltons Column of morgagni Anal valve Anal sinus Importance of dentate line : Importance of dentate line Development-upper>endodermal cloaca -lower>ecto proctodeum Artery-upper>sup rectal art -lower>inf rectal art Venous-upper>sup rectal vein -lower>inf rectal vein Lymph-upper>int iliac lower>sup inguinal nodes Nerve-upper>autonomic -lower>somatic HILTON’S LINE : HILTON’S LINE Represented by anal intersphincteric groove At the lower end of int sphincter m. Bluish pink area above &black skin below Physiology of continence : Physiology of continence Resting Tone → depends on INTERNALSPHINCTER → High pressure zone prevents stool leakage (like LES for reflux) Squeeze pressure (when stool presents distally) – contraction of EXTERNAL SPHINCTER + PUBORECTALIS – prevents stool from leaking out of vault once in the proximal anal canal You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
rectum anal canal drras1278 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Copy Does not support media & animations WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 5134 Category: Education License: All Rights Reserved Like it (4) Dislike it (0) Added: December 03, 2008 This Presentation is Public Favorites: 3 Presentation Description enjy Comments Posting comment... By: rohancool123 (27 month(s) ago) can u please email bariya.rohan@gmail.com. please..... nice ppt Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript ANATOMY RECTUM &ANAL CANAL : ANATOMY RECTUM &ANAL CANAL Length-12 cm ANATOMY/CURVATURES : ANATOMY/CURVATURES Lateral curvatures-3 A P curves-2 INTERIOR OF RECTUM : INTERIOR OF RECTUM HOUSTON VALVES 1ST-S3vertebra,lt / rt 2nd-(lt) 3rd-most imp & constant (rt)…S5 vertebra 4th-(lt) Functions Support wt of faeces RELATIONS OF RECTUM : RELATIONS OF RECTUM Peritoneal Ant/post/lat Post relations : Post relations Artery supply : Artery supply SRA-rt-ant & post lt MRA- IRA- OTHERS- VENOUS DRAINAGE : VENOUS DRAINAGE importance Lymphatic drainage : Lymphatic drainage NERVE SUPPLY : NERVE SUPPLY SYMP-sup hypogastric plexus(L1,L2) Parasymp-pelvic splanchnic n. Anal canal anatomy : Anal canal anatomy Anatomical- dentate line-anal verge Surgical- anorectal jn-anal verge Slide 17: Anorectal ring -puborectalis -deep ext sphincter -conj long muscle -int sphincter Helps for continence Anorectal angle (80-90 degrees) between rectum and anal canal (maintained by continuous tonic activity of the puborectalis muscle) muscles : muscles PUBORECTALIS -continence -supplied by somatic nerves -funct ii ext anal shincters Ext anal sphincters-vol muscle -supplied by pudendal n. -deep,sup,subcut Int anal sphincters-invol muscle -supplied by autonomic n Long muscle- Int structure : Int structure Dentate line White line of hiltons Column of morgagni Anal valve Anal sinus Importance of dentate line : Importance of dentate line Development-upper>endodermal cloaca -lower>ecto proctodeum Artery-upper>sup rectal art -lower>inf rectal art Venous-upper>sup rectal vein -lower>inf rectal vein Lymph-upper>int iliac lower>sup inguinal nodes Nerve-upper>autonomic -lower>somatic HILTON’S LINE : HILTON’S LINE Represented by anal intersphincteric groove At the lower end of int sphincter m. Bluish pink area above &black skin below Physiology of continence : Physiology of continence Resting Tone → depends on INTERNALSPHINCTER → High pressure zone prevents stool leakage (like LES for reflux) Squeeze pressure (when stool presents distally) – contraction of EXTERNAL SPHINCTER + PUBORECTALIS – prevents stool from leaking out of vault once in the proximal anal canal