gross 3 -ch 3 peritoneum

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How many layers is the greater omentum?

4

what is the greater omentum?

4 layers of peritoneum attached to the GREATER curvature of the stomach and the proximal duodenum which hangs down like and apron and also trnasverse colon and transversemesocolon

What are paracolic gutters lateral to?

Ascending and descending colons

Which of the following does not have a free mesentery in the adult? Ascending colon/ileum/jejunum/ transverse colon***

Ascending colon- it's retroperitoneal

What 2 sacs are found in the peritoneal cavity?

Greater Lesser- omental bursa

What does the transverse mesocolon divide?

Greater sac

What words are associated with the liver?

Hepatic Portal

The dorsal part of the ventral mesentery forms the?***

Lesser omentum

The lesser omentum is a double fold of peritoneum which is attached to?**

Liver Stomach First part of duodenum

What is the mesentery of the vermiform appendix?

Mesoappendix

What is the opening to the lesser sac called?

Omental foramen/ epiploic foramen/ foramen of Winslow

Where is the lesser sac found?

Posterior to the stomach and lesser omentum

What is the mesentery of the small intestine?

Principle mesentery

what quadrant of the abdomen is the liver found in?

RUQ

What does the mesentery of the small intestines divide the infracolic compartment into?

Right and left infracolic spaces

What is the mesentery of the sigmoid colon?

Sigmoid mesocolon

What structures are in the infracolic compartment?

Small intestines Ascending colon Descending colon *posterior to greater omentum

What structures are in the supracolic compartment?

Stomach Liver Spleen

What are the 2 compartments of the greater sac?

Supracolic compartment Infracolic compartment

What is the mesentery of the transverse colon?

Transverse mesocolon

what is peritoneum?

a serous membrane that lines the abdominopelvic cavity and covers the viscera

what side of a retroperitoneal organ is covered by parietal peritoneum?

anterior wall

what is the lesser omentum?

double layer attached to lesser curvature of the stomach and proximal dudodenum of liver

what is mesentary?

double layer of peritoneum that connect organs to body wall AND coveys vessels and nerves

what are the secondarily retroperitoneal structures?

duodenum pancreas ascending and descending colons GI ORGANS

what does the peritoneal cavity develop from?

intraembryonic coelom (embryonic body cavity)

what is the peritoneal cavity?

it is the space within the abdominal cavity that is between the parietal and visceral layers of peritoneum

what are the primarily retroperitoneal structures?

kidneys IVC aorta suprarenal glands NOT GI ORGANS

what is another name for the round ligament of the liver?

ligamentum teres hepatis

where is the faliciform ligament? what type of mesentary does it come from?

liver to anterior abdominal wall ventral mesentary

what does subperitoneal mean?

located inferior to parietal peritoneum ex. kidneys

what does retroperitoneal mean?

located posterior to the parietal peritoneum and against the posterior abdominal wall

what is another word for serous membrane?

mesothelium

what is another name for stomach mesentary?

omentum

what is a secondarily retroperitoneal structure?

one which developmentally began in the peritoneal cavity but was then pushed out to behind it

what is a primarily retroperitoneal structure?

one who devlopmentally began and stayed behind the peritoneum

what are intraperitoneal organs?

ones within the peritoneum almost completely covered with visceral peritoneum

what are extraperitoneal organs?

organs external to the parietal peritoneum , partially covered with visceral peritoneum

what are the 2 types of peritoneum?

parietal - lines wall of cavity visceral - covers viscera

what does parietal peritoneum (mesothelium) derive from

somatic mesoderm

what does visceral meosthelium derive from?

splanchnic mesoerm

what does the gastrocolic ligament connect?

stomach to colon

what does the gastrophrenic ligament connect?

stomach to diaphragm

what does the gastrosplenic connect?

stomach to spleen

what surface of a subperitoneal organ is covered by parietal peritoneum?

superior surface ex. urinary bladder

what is the round ligament of the liver a remnant of?

umbilical vein

how long is the peritoneal cavity connected to extraembryonic coelom ?

until 10th week, at umbilicus

what type of mesentary is the lesser omentum?

ventral


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