Lesson 3A (Part 2) Flashcards
Omentum
Is a mesentery that is attached to the stomach
- creates an apron like appearance
What are the 2 types of omentum?
- Greater omentum
2. Lesser omentum
Greater omentum
A part of the peritoneum that descends from the greater curvature of the stomach and proximal duodenum
Lesser omentum
A fold of peritoneum that goes from the lesser curvature of the stomach and proximal duodenum to the liver
What are 3 functions of the greater omentum?
- Fat storage area
- Immune contribution
- Infection and wound isolation
What does the greater omentum have?
A collection of macrophages
What do macrophages do?
They eat/engulf bacteria and dead cells
Through what process do macrophages eat bacteria?
Phagocytosis
What can the greater omentum limit?
The spread of infection
- can wrap around areas of infection and trauma
What does the lesser omentum connect? (3)
- Lesser curvature of the stomach
- First part of the duodenum
- Hilum of the liver
What 3 ligaments does the greater omentum form?
- Gastrophrenic
- Gastrosplenic
- Gastrocolic
What 2 ligaments does the lesser omentum form?
- Hepatogastric
2. Hepatoduodenal
How is the lesser omentum connected to the greater sac?
Through the foramen of winslow
What is the space behind the lesser omentum and stomach called?
Omental bursa
- or lesser sac
What organs are part of the abdomen cavity, but not apart of the greater sac? (3)
- Pancreas
- Aorta
- Duodenum
What are the peritoneal cavity division? (3)
- Great sac
- Lesser sac
- Epiploic foramen
What is another word for the greater sac?
Abdominoplevic cavity
Where does the greater sac extend from?
From the diaphragm to the pelvic cavity
What does the greater sac enclose?
Most of the abdominal organs
What is another word for the lesser sac?
Omental bursa
Bursa
A fluid filled sac that functions as a gliding surface to reduce friction between tissues of the body
What is another word for epiploic?
Foramen of Winslow
What is epiploic associated with?
An omentum
Omentum
Fold of peritoneum that attaches the stomach to something else
What is the function of the foramen of winslow?
Acts as a passageway between the greater and lesser sacs to allow for communication between the 2 spaces
- also allows the passage of vessels and nerves
What are peritoneum ligaments?
Is a double fold of peritoneum that connects viscera together or connects viscera to the abdominal wall
What organ does the greater omenta work with?
The stomach
What organ does the lesser omentum work with?
The liver
