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Flashcards in Pancreas and spleen Deck (32):
1

Two main functions of the glandular pancreas?

Endocrine:
Produces hormones to control blood sugar (insulin, glucagon)

Exocrine:
Produce enzymes to aid digestion (lipase, amylase)

2

Head of pancreas

-in the concave part of the descending duodenum (2nd part)

- uncinate process wraps behind the SM vessels like a hook

3

Neck

narrow area from head > body
lies anterior to the SM vessels

4

Tail of pancreas

passes into lienorenal (splenorenal) ligament and is in contact with the hilus of the spleen

**( is intraperitoneal)

5

Position and appearance of the splenic vessels

Splenic artery: anterior to pancreas, looks 'tortuous'

Splenic vein: Runs through the pancreas

6

Regions of the pancreas. where does the pancreas sit?

Head, neck, body, tail

sits beneath stomach

7

What lies anterior and posterior to the pancreas

Anterior
- Stomach, transverse colon

Posterior
- splenic vein/artery, bile duct, portal vein, IVC/aorta, SMA, Lpsoas, Left kidney, spleen

8

If present where does the accessory duct drain to?

through head of pancreas into duodenum

9

Main pancreatic duct

From tail to ampulla of vater
is joined by bile duct
-Enters duodenum via the sphinter of Oddi/ major duodenal papilla

Here pancreatic juice/bile is released

An accessory duct MAY be present, which drains into upper part of head > minor duodenal papilla

10

the three important sphincters are? What muscle forms these?

1) Sphincter of Oddi
2) Sphincter of Bile Duct
3) Sphincter of Pancreatic duct

smooth muscle

11

ampulla of vater is also called...

Hepatopancreatic ampulla

12

Why is the arterial etc supply pancreas so interesting?

Because its MIDWAY between foregut and midgut = DUAL SUPPLY

13

How can you identify the Inferior pancreatoduodenal artery

comes off SMA, which is posterior to neck of pancreas

14

Common hepatic >>>>

CH > gastroduodenal > superior pancreaticduodenal > anterior/posterior PD

15

Splenic >>>>>

Splenic > dorsal & greater pancreatic

16

Superior Mesenteric >>>>

SMA > inferior pancreaticduodenal > ant& post PD

17

When does the proper hepatic artery form?

When gastroduodenal and the Right gastric has branched off

18

Venous drainage of the pancreas

Will all flow back to the portal vein, through the splenic or SMV >> to liver >> to IVC

19

Lymphatics of the pancreas

Dual lymphatic drainage
Coeliac nodes @T12
SM nodes @L1

20

ANS of the pancreas

Coeliac and SM plexus
so Greater and lesser splanchnic
and vagus {X}

pain > epigastric region

21

The spleen is

largest single mass of lymphoid tissue
- filters and recycles blood and supports IS
- NOT PART OF GUT
-sits between lienorenal and gastroplenic ligaments

22

Lienorenal ligament carries

spleen to left kidney
carries splenic vessels and tail of pancreas

23

Gastrosplenic ligament carries

spleen to stomach
carries short gastric (fundus) and gastro-epiploic vessels (left gastro-omental)

24

Structures anterior to the spleen

tail of pancreas
stomach
left colic flexure

25

structures posterior to the spleen

left kidney
ribs 9-11

26

two surfaces of the spleen

-diaphragmatic (pressed up against the body wall/ diaphragm)

-visceral (in contact with anterior structures, eg: kidneys, stomach, colic flexure)

27

Poles of the kidney and what they're used for

upper and lower poles, for measuring

28

Areas of the spleen

Gastric (sup), renal (inf), colic (ant)

29

Art, Venous, lymph and ANS of spleen

Art: splenic artery (from Coeliac trunk)
Venous: splenic vein ( into portal vein)
Lymphatics: coeliac nodes @ T12
ANS: coeliac nodes @T12 (PS- vagus, S- greater splanchnic)

pain to epigastric region

30

What lies on the Trans-pyloric plane (L1)?

-pyloric region of stomach
- 1st part of duodenum
-GB fundus
-hila of kidneys
-hilus of spleen
-neck of pancreas
- SMA origin
-PV origin
- tip of 9th costal cartilage
- end of spinal cord (filum terminale)

31

Where does the transpyloric pane lie

midway between suprasternal notch and pubic symphysis @L1

32

Rule of odd numbers,
1, 3, 5, 7, 9 11

1) spleens dimensions 1 x 3 x 5 inches (txlx5)

2) Spleens weight ~7 ounces (`200g)

3) spleen is found under ribs 9-11