peritoneal formations

Question 1

What is a mesentery?

Answer 1

A double layer of peritoneum that occurs as a result of the invagination of the peritoneum by an organ.

Question 2

What does the mesentery allow for?

Answer 2

communication of an organ and the body wall
Attaches the viscera to the body wall.
a core of connective tissue containing blood, lymphatics, and nerves.

Question 3

What does a mesentery constitute?

Answer 3

Continuity of the visceral and parietal peritoneum.

Question 4

What is the small intestine mesentery?

Answer 4

mesentery for the small intestine

other parts of small intestine may have their own mesentery

Question 5

What is a fusion fascia?

Answer 5

layers of the peritoneum that are now fused and contain the vessels for that organ

Question 6

What is the omentum?

Answer 6

double fold of the peritoneum that passes from the stomach and proximal duodenum to adjacent organs

Question 7

What is the greater omentum?

Answer 7

four layered fold that hangs from the greater curvature of the stomach and proximal duodenum and attaches to the transverse colon and its mesentery
largest peritoneal fold

Question 8

What is the lesser omentum?

Answer 8

Double-layered entity suspended between the lesser curvature of the stomach and the proximal part of the duodenum to the liver
Forms anterior surface of the lesser sac.

Question 9

What can the lesser omentum be divided into ?

Answer 9

Can be divided into 2 ligaments hepatogastric (stomach)

hepatoduodenal (duodenum)

Question 10

What is the lesser omentum derived from?

Answer 10

Derived from ventral mesogastrium

Question 11

What is found in the hepatogastric ligament?

Answer 11

right and left gastric vessels,
branches of the vagus,
lymph nodes.
stomach is also connected to the gastrophrenic/gastrosplenic/gastrocolic

Question 12

what is found in the hepatodudoneal ligament?

Answer 12

portal vein, 
common bile duct,
 hepatic artery,
portocaval lymph nodes, 
lymphatics, 
hepatic plexus.

Question 13

What is a peritoneal ligament?

Answer 13

double layer peritoneum that connects an organ to another organ or to body wall

Question 14

What are the peritoneal ligaments of the liver?

Answer 14

falciform ligament
hepatigastric ligament
hepatoduadenal ligament

Question 15

What is peritoneum fold?

Answer 15

Reflections of the peritoneum that have more or less sharp borders.

Question 16

How are peritoneum folds formed?

Answer 16

Is raised from body wall by underlying blood vessels, ducts, and ligaments formed by obliterated fetal vessels.

Question 17

What are the umbilical peritoneum folds?

Answer 17

median
medial
lateral

Question 18

Where is the median umbilical fold located?

Answer 18

Runs from apex of bladder to umbilicus in the midline

Question 19

What does the median umbilical fold contain?

Answer 19

Contains the urachus (which joined fetal bladder to umbilicus).

Question 20

Where is the medial umbilical fold?

Answer 20

Lateral to the median fold.

Runs from pelvis to umbilicus.

Question 21

What does the medial umbilical fold contain?

Answer 21

Contains the remnants of the umbilical arteries.

Question 22

Where is the lateral umbilical fold?

Answer 22

Lateral to the medial fold.

Question 23

What does the lateral umbilical for contain?

Answer 23

Contains the inferior epigastric vessels below entry into the rectus sheath.

Question 24

What is a peritoneal recess or fossa?

Answer 24

pouch of peritoneal formed by peritoneal fold

Question 25

What are the peritoneal recesses?

Answer 25

Supravesical
medial inguinal
lateral inguinal
femoral

Question 26

Where is the supravesical fossa located?

Answer 26

Lies between the medial and median umbilical folds

Question 27

Where is the medial inguinal recess located?

Answer 27

Lies between the medial and lateral umbilical folds.

Also known as the inguinal triangles

Question 28

Where is the lateral inguinal recess located?

Answer 28

Lateral to the lateral umbilical folds.

Includes the deep inguinal ring.

Question 29

Where is the femoral recess located?

Answer 29

Lies inferomedial to the lateral inguinal fossa.
Separated by the medial end of the inguinal ligament.
Overlies the femoral ring.

Question 30

What are the general peritoneal formations?

Answer 30

messentary 
omentum 
peritoneal ligament 
peritineal folds 
peritoneal recess or fossa