The epiploic foramen (also called the foramen of Winslow) is a passage between the greater sac (peritoneal cavity proper) and the lesser sac (omental bursa), allowing communication between these two spaces.

What are the borders of the epiploic foramen?

• Anteriorly: free edge of lesser omentum containing within its layers: Bile duct (in front and to the right) Hepatic artery (in front and to the left0. ...
• Posteriorly: Inferior vena cava covered by peritoneum.
• Superiorly: Caudate process of liver.
• Inferiorly: 1^st part of duodenum.

Where does the omental foramen lie in relation to the Hepatoduodenal ligament?

The hepatoduodenal ligament passes from the duodenal bulb towards the visceral surface of the liver. It ends as a free border, forming the anterior margin of the omental foramen, The hepatoduodenal ligament carries the portal triad (hepatic portal vein, proper hepatic artery and bile duct).

What is in the lesser sac?

The lesser omentum is composed of two peritoneal ligaments that extend from the lesser curvature of the stomach and duodenal bulb to the liver, the gastrohepatic, and hepatoduodenal ligaments, respectively.

What is in the Hepatoduodenal ligament?

[7] The hepatoduodenal ligament has lymphatic pathways, which will flow into the Pecquet cistern at a sub-diaphragmatic level. It also has the name "pars tensa" of the small omentum; its thickness contains the portal triad, that is, the portal vein, the hepatic artery, and the common bile duct.

Epiploic foramen- Easy notes(anatomy)

Is portal triad in the hepatoduodenal ligament?

The hepatic artery proper, common bile duct, and portal vein run through the ligament near its free edge to reach the liver. These three structures are often referred to as the portal triad. ... These three important structures exist within the hepatoduodenal ligament.

What is in the hepatogastric ligament?

The hepatogastric ligament or gastrohepatic ligament connects the liver to the lesser curvature of the stomach. It contains the right and the left gastric arteries. In the abdominal cavity it separates the greater and lesser sacs on the right. It is sometimes cut during surgery in order to access the lesser sac.

What is the omental foramen?

In human anatomy, the omental foramen (epiploic foramen, foramen of Winslow after the anatomist Jacob B. Winslow, or uncommonly aditus; Latin: Foramen epiploicum), is the passage of communication, or foramen, between the greater sac (general cavity (of the abdomen)), and the lesser sac.

Where is the peritoneum?

Your peritoneum is the tissue that lines your abdominal wall and covers most of the organs in your abdomen.

What is a omentum?

The Omentum is a large flat adipose tissue layer nestling on the surface of the intra-peritoneal organs. Besides fat storage, omentum has key biological functions in immune-regulation and tissue regeneration.

Where is the epiploic foramen?

The epiploic foramen (also called the foramen of Winslow) is a passage between the greater sac (peritoneal cavity proper) and the lesser sac (omental bursa), allowing communication between these two spaces.

What is Calot's triangle?

Calot triangle or cystohepatic triangle is a small (potential) triangular space at the porta hepatis of surgical importance as it is dissected during cholecystectomy. Its contents, the cystic artery and cystic duct must be identified before ligation and division to avoid intraoperative injury.

Where is the Ligamentum Venosum?

Anatomical Parts

The ligamentum venosum is the fibrous remnant of the ductus venosus of the fetal circulation. Usually, it is attached to the left branch of the portal vein within the porta hepatis (gateway to theliver).

What forms the superior boundary of the epiploic foramen?

It is bounded in front by the free border of the lesser omentum, with the common bile duct, hepatic artery, and portal vein between its two layers; behind by the peritoneum covering the inferior vena cava; above by the peritoneum on the caudate process of the liver, and below by the peritoneum covering the commencement ...

Is gallbladder intraperitoneal or retroperitoneal?

Intraperitoneal: peritonealized organs having a mesentery, such as the stomach, small intestine (jejunum and ileum), transverse colon, liver and gallbladder. Retroperitoneal: organs without a mesentery and associated with posterior body wall, such as the aorta, inferior vena cava, kidneys and suprarenal glands.

Where is the caudate lobe of the liver located?

The caudate lobe of the liver is located deep in the liver, in front of the inferior vena cava (IVC) behind the three major hepatic veins, and cranial to the hilar plate.

What is retroperitoneal and intraperitoneal?

retroperitoneal: Located outside of the peritoneum. ... intraperitoneal: Within the cavity of the peritoneum. mesentery: The membrane that attaches the intestines to the wall of the abdomen and maintains their position in the abdominal cavity to supply them with blood vessels, nerves, and lymphatics.

What is the greater sac?

In human anatomy, the greater sac, also known as the general cavity (of the abdomen) or peritoneum of the peritoneal cavity proper, is the cavity in the abdomen that is inside the peritoneum but outside of the lesser sac. ...

What means retroperitoneal?

(REH-troh-PAYR-ih-toh-NEE-ul) Having to do with the area outside or behind the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen).

Where is retroperitoneal space?

The retroperitoneum is an anatomical space located behind the abdominal or peritoneal cavity. Abdominal organs that are not suspended by the mesentery and lie between the abdominal wall and parietal peritoneum are said to lie within the retroperitoneum. Several individual spaces make up the retroperitoneum.

What is epiploic foramen entrapment?

Introduction. Epiploic foramen entrapment in the horse refers to the displacement of a segment of small intestine through a small hole or foramen that separates the omental bursa from the peritoneal cavity.

Is the pancreas retroperitoneal?

The pancreas is a retroperitoneal organ with a close anatomic relationship to the peritoneal reflections in the abdomen, including the transverse mesocolon and the small bowel mesentery, and is directly contiguous to peritoneal ligaments such as the hepatoduodenal ligament, gastrohepatic ligament, splenorenal ligament, ...

What is portal triad in liver?

Portal triads are composed of three major tubes. Branches of the hepatic artery carry oxygenated blood to the hepatocytes, while branches of the portal vein carry blood with nutrients from the small intestine. The bile duct carries bile products away from the hepatocytes, to the larger ducts and gall bladder.

What is the Gastrophrenic ligament?

Gastrophrenic ligament. (Science: anatomy) The portion of the greater omentum that extends from the greater curvature of the stomach to the inferior surface of the diaphragm. Synonym: ligamentum gastrophrenicum, gastrodiaphragmatic ligament, phrenogastric ligament.

What is ligamentum teres in liver?

The round ligament of the liver (or ligamentum teres, or ligamentum teres hepatis) is a ligament that forms part of the free edge of the falciform ligament of the liver. It connects the liver to the umbilicus. It is the remnant of the left umbilical vein.