动物的内脏器官

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How to identify the 4 major blood vessels in the dissection of alimentary canal of a rat ?
To identify the blood vessels, you can perform some important steps first as follows.
Step 8
Hepatic portal vein
Coeliac artery
Anterior mesenteric artery
To clear & pin out the 3 major blood vessels
Step 9
rectum Posterior mesenteric artery
Move stomach on the right hand side of a rat
Step 2
pancreas
Stomach
Put caecum on the right foot of a rat
Step 3 You can find that Ileum is crossing the colon here. Ileum
To find the posterior mesenteric artery near rectum
Step 10
You are now finishing this dissection .
Coeliac artery
Hepatic portal vein
Anterior mesenteric artery Posterior mesenteric artery
Step 6
Trace the duodenum & ileum as a fan-like pattern
Step 7
Hepatic portal vein
Coeliac artery
Anterior mesenteric artery
To identify the 3 major blood vessels on the position first
colon
To release the loop between ileum & colon
Step 4
Pink color pancreas is clearly found
Step 5 To peel off some pancreas.
To show hepatic portal vein connecting from ileum to liver
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Spleen
ileum
caecum
Main steps to identify the 4 blood vessels
Step 1
Step 2
Step 6
Step 7
Step 3
Step 4 Step 5
Step 8
Step 9 Step 10
Step 1
To cut mesentry connected between liver and stomach