large intestine Flashcards
teniae coli
band of the outer muscle coat
all merge at the base of the appendix and go all the way to the sigmoid
isnt found from rectum and beyond
haustration
colon becomes sacculated forming haustra
omental apendices
small fatty omentum like projections from the wall
absent in cecum,appendix and rectum
the featurea of large intestine importance
increase surface area for absorbance
cecum
blind pouch at the begining of large intestine
attached to vermiform appendix to its posteromedial wall
recieves illeum to its medial side
covered with peritoneum
cecum bound to the lateral abdominal wall by peritoneal folds from
superior illeocecal recess
inferior illeocecal reccess
retrocecal reccess
weak points cz hernias occur
illeocecal orifice
opens on the medial wall of the cecm
consists of the ileocecal valve formed by two horizental folds of mucus membrane
prevents reflux from cecum to illeum
vermiform appendix
worm like muscular large amount of lymphoid tissuw
mesoappendix
covered by peritooneum and is attached to a mesentry of small intestine by a short mesentry
contains appendicular vessels and nerves
position of the appendix
right illiac possa
liesat the McBurney’s point
lies at the junction of the 1/3 lateral and 2/3 medial of the right spino umbilical line
how is the appendix located inside the abdomen
merging of the tinae coli at the base of appendix
common postions of the appendix
retrocecal(behind) postileal (behind illeum) preileal (behind illeum) pelvic paracecal (lateral)
appendecitis
inflammation of appendix
occlusion of the narrow appendicular lumen
what happens secretions cannot escape stretching of visceral peritoneum vague pain in the periumbilical region (t10) referred pain around the umbelicus
