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Atlas of Human Anatomy: With Netteranatomy.com (Netter Basic Science)
Clinically Oriented Anatomy, Sixth Edition: Softcover North American Edition
Color Atlas of Anatomy: A Photographic Study of the Human Body (Point (Lippincott Williams & Wilkins))
Gray's Anatomy for Students: With STUDENT CONSULT Online Access
What is a mesentery?
double layer of peritoneum (visceral and parietal layer comes together)
What is parietal peritoneum innervated by?
Innervated by GSA's , thus can localize pain
capillary thin space b/t parietal and visceral peritoneum
filled w/ peritoneal fluid
**NO VISCERA IN THIS CAVITY
can have pregnancy here because uterine tubes open into peritoneal cavity
What do the greater and lesser sacs communicate though?
What is ascites?
excess serous fluid collection in the peritoneal cavity
looks like prego belly
what is in the supracolic compartment?
contains liver, stomach, falciform ligament, lesser and greater omentum, and spleen
super and anterior to transverse colon
anterior to gastrocolic ligament
deep subvolume on the right side
b/t renal fossa on visceral surface of R liver anteriorly , and the right kidney and suprarenal gland posteriorly
it is gravity dependent - in supine position (fluids/pus drain into this recess from lesser sac)
contents of infracolic compartment
contains: loops of jejunum and ileum, pelvic cavity
located inferior and posterior to transverse colon and mesentery
bounded by ascending, descending, and transverse colon
divided into L and R by mesentery proper
boundaries of the epiploic foramen
opening b/t great and lesser sac
anterior- hepatoduodenal ligament
superior- caudate lobe of liver
inferior- 1st part of duodenum
during premordial gut tube development, alimentary tract develops as single tube suspended by ventral and dorsal mesentery
ventral mesentery degenerates except 4 structures:
round lig. of liver
persists postnatally and suspends gut tube from posterior wall
most of gut tube has some remnants of dorsal mesentery
--exceptions: duodenum, ascending and descending colon --fairly immobile (secondary retroperitoneal)
created when dorsal mesentery of ascending & descending colon fuse to embryo. parietal peritoneum of post. wall during gut fixation
cleavage cleft can be created during surgery -- allows organ to be peeled off posterior wall w/o compromising neurovascular supply
NEVER invested by a dorsal mesentery during fetal development
only anterior surface partly/ completely covered by peritoneum
includes: kidneys, ureters, aorta, autonomic nerve plexuses, IVC, symp. trunks, inferior rectum
has had mesentery but lost it by end of fetal development
closely related to extraperitoneal fascia via fusion fascia- have peritoneum covering surface facing peritoneal cavity
includes: head neck and body of pancreas (everything but tail) , most of duodenum (except 1st half of 1st part, and duodenaljejunal flexure), ascending and descending colon
project into cavity and almost completely invested by visceral peritoneum
suspended to ab. wall via mesentery
have some movement
includes: stomach, 1st half of duodenum, duodenaljejunal flexure, jejunum, ileum, cecum, appendix, transverse and sigmoid colon, liver (except bare area), gallbladder, tail of pancreas, spleen
What is the greater omentum?
postnatal manisfestation of dorsal mesentery
very moveable and can spread into locations where needed -- can wall of infection or plug a defect in wall --minimize hernia formation
What are the 4 ligaments of the greater omentum?
gastrocolic -largest- b/t stomach and transverse colon
gastrophrenic- b/t stomach fundus and L hemidiaphragm
gastrosplenic- superior continuation of gastrocolic, b/t greater curvature of stomach and hilum of spleen
splenorenal- b/t hilum of spleen and anterior L kidney
what are the cecal folds?
more peritoneal folds that form lateral margins of retrocecal recess, and anchor cecum to iliacus mm.
short triangular mesentery attaching to proximal vermiform appendix
What 2 ligaments form the lesser omentum?
hepatogastric - largest- b/t stomach and liver
hepatoduodenal - b/t liver and duodenum- right margin of lesser omentum - anterior boundary epiploic foramen -- contains portal tried ( hepatic a, hepatic portal v, & common bile duct)
the lesser omentum forms the anterior wall of the lesser sac
What are the ligaments of the liver?
falciform ligament- b/t liver and anterior body wall
round lig. of liver (ligamentum teres hepatis) - free edge of falciform lig. - remnant of umbilical v.
coronary lig- peritoneal reflection b/t liver and diaphragm , around bare area of liver
triangular lig- anterior and posterior lig tape to form triangular ligs at L and R lateral margins
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