University:
Camosun College
Course:
BIOL 252 | Pathophysiology for Nursing 1
Academic year:

2024
Views:

353

Pages:

3
Author:

Aysha A.

Rectum- means straight →But in Human beings its curred. → it is lower dilated part of L.I. →Cardinal feature of L-I are abusenet. →Begins at 53 (Reclosigmoid Jn) → Ends at Anorectal jon (tor sightly tip of belaw at t Coccyx → L=12cm, B= 4cm Laser Dilated Port Ampulla of Rectum Curvatures Anteroposterior Sacral Curvalan 1 tatizal. perineal curratun 1-Conex to Right (s-su) and Convex to left (sacrococcygeal J) 3rd Tip of Coccyx (comex Light Comrex on ligh 1551 puboredak ↓ levator IG Zoaninag ro sardare constant Mucosal Jold Temperory longitudinal → dissapear when reckum is distindiel Importance of Valves-: 2nde yth are inconstant 4in number permament (Houstons Volver) 7 sein in rectum. - Horizontal →Along concarvity of lateral curves 1st Valve →Rectosigmoid jn (53) - can orise from 2/L wall. 3rd Valve NELAJONS SPHINCTER - long the R wall" - At level of 55 →Supports weight of Joeces.. →Rectal washing should be done in left lateral position. -Scm above anus →To prevent injury of 3rd Valve. Anal Canal →Terminal port of LI →Begins at Ano-rectal in → 2-3cm front & below the tip of coccyx. It ends at the anal orifice. VGA Its devoid of sacculations, -laenia coli 53 55 •& appendices epiploical Inknor- anal glands an prosent taining space above the onal valve. Anal sinuses 13 upper. - 15mm →4cm in lingth Relations Ant: Perineal Body Post Ano-coccygeal raphe. Aval G column Aval valves 3 middle } lower Upper part -: nucosal → made of longitudinal anal columns I smite 6-10 in number - the Anal column at lower past is connected by anal valves which are wary. Middle part 15mm Beneathe the mucosa the rectal venous pluxus is located in middle part 1 Lower part -8mm - True skin containing rosal & sebaceous glands male hairs are at orifice In adult gftan found - The transition lous e r post the middh & is Hiltons live. Anal sphincters- J - Oppor 2/322 of anal/covers enting canal amal canal. thickened much layer. →Pain injensilive Scupplied by ANS rensitive to distension →Involuntary. Deep Superficial-parts All anal valve put together gim wary line called as pectinal lim I Applied Anat: - When hard stoole, pass anal valve •will rupture cause painful condu called anal fissure. Aval pappilas Small epithelial projection on ahal valve. It is rimant of anal nombrang stoletal muncle It is not continous Subcutaneous Somadic mive Pain sensitive testinal. line- inces the anal canal into upper 2 lower orea. ti Hind gut (ondatiem). spectinat - ectoderm Durring Jetal stage this is anal memb -btw 2 ports. - latio this memb breaks. 8 hence join the 2 ports. -)) doesn't join then it is imperforated Histology- simple columnar epithelium Stratified squamultum. epittutilem. Lymphalic →Drains into preavstar Pymon nodi superficial inguinal lymph nodes. Bood Supply rectal artery (branch of) tof rectal entery bronch int pudental centery supply Wees Nerve su ANS (Mpogastric). → Injexion rectal pudental neme Venous Drainage Sup redal rein Poolal rein