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Anatomy of Pancreas.ppt -

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					    ‫بسم اهلل الرحمن الرحيم‬


    Pancreas


1         Dr. Mostafa Kandil   11/09/1431
2   Dr. Mostafa Kandil   11/09/1431
        Shape and divisions

• Oblong in shape
• It is divided into 4 parts: head ,neck, body
  and tail.




3                  Dr. Mostafa Kandil    11/09/1431
                 Origin
1. Upper part of the head,neck,body and
   tail from dorsal pancreas
2. Lower part of the head and uncinate
   process from ventral pancreas




4                Dr. Mostafa Kandil   11/09/1431
5   Dr. Mostafa Kandil   11/09/1431
          Surface anatomy
Position:
It lies transversely on the posterior
  abdominal extending from the duodenum
  in the right to the hilum of the spleen on
  the left with slight upward inclination.
Vertebral level:
At L1 and L2

6                 Dr. Mostafa Kandil   11/09/1431
7   Dr. Mostafa Kandil   11/09/1431
    PERITONEAL COVERINGS
ANTERIOR
• Anterior surface of the head, neck and
  body are only covered.
• The tail is enclosed in the lienorenal
  ligament.




8                 Dr. Mostafa Kandil   11/09/1431
9   Dr. Mostafa Kandil   11/09/1431
10   Dr. Mostafa Kandil   11/09/1431
          Pancreatic ducts
• Main opens in common with common bile
  duct into the middle of the medeal of the
  second part of duodenum.the part opens
  into major duodenal papilla
• Guarded by SPHINCTER OFOddi.
• Accessory part opens separately above
  main duct into minor duodenal papilla


11                Dr. Mostafa Kandil   11/09/1431
Pancreas - Characterisitcs & functions
      1. Tadpole shaped gland
      2. Retroperitoneal
      3. Endocrine Gland = insulin, glucagon, somatostatin=inhibits
              (islet cells)                              gastrin
      4. Exocrine Gland = Pancreatic Juice (acini cells)

               -Water
               -HCO3-
               -amylase (starch digestion)
               -lipase (fat digestion)
               -endopeptidases (protein digestion)
                       (e.g. Chymotrypsin cleaved from
                               Chymotrypsinogen=zymogen)
       5. Juices delivered to duodenum by merger of pancreatic duct w/
               common bile duct => Duodenal Papilla
13   Dr. Mostafa Kandil   11/09/1431
14   Dr. Mostafa Kandil   11/09/1431
15   Dr. Mostafa Kandil   11/09/1431
16   Dr. Mostafa Kandil   11/09/1431
17   Dr. Mostafa Kandil   11/09/1431
18   Dr. Mostafa Kandil   11/09/1431
                Relations
Anterior
• Transverse colon
• Transverse mesocolon
• Coils of small intestine
• Superior mesentric vessels over the
  uncinate process
• Neck related to pylorus and first part of
  duodenum
19                 Dr. Mostafa Kandil     11/09/1431
20   Dr. Mostafa Kandil   11/09/1431
21   Dr. Mostafa Kandil   11/09/1431
           Relations (cont.)
Posterior
Head
1. Inferior vena cava
2. Rt and lt renal veins
3. Bile duct
4. Sup pancreaticoduodal artery
5. Abdominal aorta
6. Gonadal arteries
22               Dr. Mostafa Kandil   11/09/1431
            Relations (cont.)
Neck:

1. Portal vein WHICH IS FORMED BY :
2. Superior mesentric vein &
3. Splenic vein

THIS IS THE BEST LAND MARK OF THE NECK

23                  Dr. Mostafa Kandil   11/09/1431
          Relations (cont.)
Body:
1. Aorta
2. Superior mesentric artery
3. Splenic vein
4. Lt renal vein
5. Lt crus of diaphragm
6. Lt psoas major
7. Lt kidney and suprarenal
24               Dr. Mostafa Kandil   11/09/1431
25   Dr. Mostafa Kandil   11/09/1431
26   Dr. Mostafa Kandil   11/09/1431
                Blood supply
•    Arterial
•    Superior and inferior pancreaticoduodenal
•    Pancreatic from splenic artery
•    Venous
•    The same names of veins portal




27                   Dr. Mostafa Kandil   11/09/1431
28   Dr. Mostafa Kandil   11/09/1431
29   Dr. Mostafa Kandil   11/09/1431
30   Dr. Mostafa Kandil   11/09/1431
31   Dr. Mostafa Kandil   11/09/1431
32   Dr. Mostafa Kandil   11/09/1431
33   Dr. Mostafa Kandil   11/09/1431
        Lymphatic drainage
1. To celiac group of lymph nodes
2. To superior mesentric lymph nodes
3. To splenic lymph nodes




34               Dr. Mostafa Kandil    11/09/1431
35   Dr. Mostafa Kandil   11/09/1431
36   Dr. Mostafa Kandil   11/09/1431
            Nerve supply
• Parasympathetic
Vagus
• Sympathetic
Thoracolumbar/Celiac ganglion




37               Dr. Mostafa Kandil   11/09/1431
38   Dr. Mostafa Kandil   11/09/1431
39   Dr. Mostafa Kandil   11/09/1431
40   Dr. Mostafa Kandil   11/09/1431
            Referred pain
• In pathological cases of pancreas pain is
  felt in the epigastrium and referred to
  encircle the back.
• In cases of acute hemorrahgic pancreatitis
  the released proteolytic enzymes erode
  the pancreas leadind to massive
  concealed haemorrhage.


41                Dr. Mostafa Kandil   11/09/1431
42   Dr. Mostafa Kandil   11/09/1431
     Thank you
43      Dr. Mostafa Kandil   11/09/1431
44   Dr. Mostafa Kandil   11/09/1431

				
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