Peritoneum

Question 1

Layers of Peritoneum and their origins

Answer 1

1. Pareital- pain sensitive via Somatopleuric layer of lateral plate mesoderm
2. Visceral- splanchoplueric layer. only pain senstive when distended/ischemic

Question 2

Regions of Abdominal Cavity

Answer 2

Right hypochondrium, epigastrium , left hypochondrium
Right lumbar, umblical, left lumbar
right iliac fossa, hypogastrium, left ilac fossa

Question 3

Contents of right hypochondrium

Answer 3

Liver

gallbladder

Question 4

Contents of epigastrium

Answer 4

stomach
duodenum
pancreas

Question 5

Contents of left hypochondrium

Answer 5

stomach
spleen
left colic flexure

Question 6

Right lumbar

Answer 6

right kidney
ureter
ascending colon

Question 7

umblical

Answer 7

Aorta
inf vena cava
small intestine
stomach

Question 8

Left lumbar

Answer 8

left kidney
ureter
descending colon

Question 9

Right iliac fossa

Answer 9

cecum

appendix

Question 10

hypogastrium

Answer 10

bladder

small intestine

Question 11

Lesser Sac and boundaries

Answer 11

Large recess of peritoneal cavity behind stomach, lesser omentum and caudate lobe and liver

1. Anteriorly- peritoneum covering caudate lobe and stomach, post. layer of lesser omentum, 2nd layer of greater omentum
2. Posteriorly- 3rd layer og greataer omentum, transverse mesocolon, peritoneum

Question 12

What is the greater omentum

Answer 12

Large fold of peritoneum hanging down the greater curvature of the stomach
posterior two layers attactch to the pancreas
fourth layer attaches to the tranverse colon and mesocolon

Question 13

Functions of the greater omentum

Answer 13

1. fat storage
2. protection
3. prevention of spread of infection

Question 14

Police man of the abdomen is known as

Answer 14

Greater omentum

Question 15

Contents of greater omentum

Answer 15

Gastroepiploic vessels and fat

Question 16

Lesser Omentum

Answer 16

Smaller fold of peritoneum extending from the lesser curvature of the stomach
Inferiorly-stomach
superiorly-liver

Question 17

Contents of lesser omentum in the right free margin

Answer 17

Proper hepatic artery
portal vein
bile duct
lymph nodes
hepatic nerve plexus

Question 18

Contents of the upper part of lesser omentum

Answer 18

gastric vessels
gastric lymph nodes
gastric nerves

Question 19

Whats the epiplloic foramen

Answer 19

Communication between the greater and lesser sac at the level of T12

Question 20

Boundaries of epiploic foramen

Answer 20

Anteriorly- right free margin of lesser omentum
Posteriorly- T12, inf vena cana and right adrenal
Superiorly- Caudate process of liver
Inferiorly- 1st part of duodenum

Question 21

Whats the lesser sac

Answer 21

Large recess of peritoneal cavity behind stomach

Question 22

Boundaries of lesser sac

Answer 22

Anteriorly- Peritoneum covering caudate liver, post, layer of lesser omentum. 2nd layer of greater omentum
Posteriorly- 3rd layer of greater omentum, peritoneum covering transverse colon

Question 23

Subdivisons of lesser sac

Answer 23

1. superior recess
   2, inferior recess
   3, splenic recess

Question 24

Why is trangulated internal hernia approached via thegreater omentum

Answer 24

Epiploic foramen can not be enlarged due to important structures arround it

Question 25

posterior gastric ulcer may perforate causing fluid to leak into

Answer 25

LEsser sac via the epiploic foramen

Question 26

Parietal peritoneum of abdomen is supplied by

Answer 26

t7-l1

Question 27

parietal peritoneum of the abdomen is supplied by

Answer 27

obturator nerve

Question 28

the commonest site of subphrenic abcesses in supine position is

Answer 28

hepatorenal space

due to infection from gall bladder, appendix and other organs

Question 29

pus tends to collect where in standing postion

Answer 29

floor of rectouterine/rectovesicle pouch

Question 30

pain of foregut structures is felt in

Answer 30

epigastric area

Question 31

pain of midgut organs is felt in

Answer 31

periumblical area

Question 32

pain for hindgut is felt in

Answer 32

suprapubic area

Question 33

Morrisons pouch

Answer 33

Pouch between posterior surface of liverm right kidney and hepatic flexure