Abdominal viscera: liver, pancreas and spleen Flashcards Preview

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Flashcards in Abdominal viscera: liver, pancreas and spleen Deck (18)
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1

Is the spleen a foregut derivative?

No, it is a mesoderm derivative but shares the foregut blood supply

2

In the embryo, how does the stomach rotate to form the lesser sac?

The stomach rotates 90° to the right and 90° clockwise to form the lesser sac

3

Which mesentery does the liver grow in?

The liver grows in the ventral mesentery and eventually grows out of the top of it

4

What does the falciform ligament contain in the embryo and the adult?

Embryo: umbilical vein
Adult: ligamentum teres (remnant of umbilical vein)

5

What are the 4 lobes of the liver?

Right
Left
Caudate
Quadrate

6

What is the bare area of the liver in contact with?

Diaphragm

7

How many functionally independent segments are there in the liver?

8

8

What is the blood supply of the liver?

30% from hepatic artery, 70% from portal vein

9

How does the blood supply enter the liver?

Via the free edge of the lesser omentum - epiploic foramen:
bile duct, hepatic artery, portal vein (BPH)

10

What are the classic symptoms of gall stones?

Gall stones can obstruct the duct system and cause symptoms including pain (biliary colic), cholecystitis and jaundice

11

What is the most important thing to remember about peritoneal recesses?

Accumulate fluid / be a focus for abscess formation
Are gravity dependent

12

Where does the gallbladder sit? (anatomical landmark)

Around the top of 9th costal cartilage

13

What is Murphy's sign?

Murphy's sign is elicited in patients with acute cholecystitis by asking the patient to take in and hold a deep breath while palpating the right subcostal area. If pain occurs on inspiration, when the inflamed gallbladder comes into contact with the examiner's hand +ve

14

What is an annular pancreas and what could it cause?

2nd part of the duodenum is surrounded by a ring of pancreatic tissue - narrow the duodenal lumen

15

What do the minor and major duodenal papilla receive/drain?

Minor - receives accessory pancreatic duct
Major - drainage point for pancreatic and hepatic secretion

16

Why might pancreatic cancer cause jaundice?

Major duodenal papilla can be blocked by stones or tumours of the pancreatic head - drains the bile duct so can cause jaundice

17

What are the anatomical relations of the spleen?

Diaphragm, ribs 9-11 and costodiaphragmatic recess

18

Can the spleen cause epigastric pain?

NO! Even though it receives blood from the coeliac trunk, it is not a foregut structure, it is of mesenchymal origin