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  #1  
Old 03-24-2010
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Zygote Gut Embryology / Anatomy

Which of the following is vascularized by the foregut artery but is not itself a foregut derivative?
A- Gallbladder
B- Liver
C- Duodenum
D- Spleen
E- Pancreas
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Old 03-24-2010
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D spleen
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  #3  
Old 03-24-2010
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Default Nice question

Nice question:
If you think of the options carefully you'll see that only the spleen has no direct connection to the gut, all the others have some kind of "tube" connections to the gut

The spleen is derived from the mesoderm not the gut (endoderm). Yet it's still supplied by a branch of the celiac trunk.

Viscera that are of mesodermal origins are:
Spleen, Kidney and adrenals, Gonads, and the Heart. All other visceral organs are derived from the endoderm including the Thyroid.
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Old 03-24-2010
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I have a problem with this question.
I agree with you about the spleen but the some parts of the dueodenum receives blood supply from the inferior pancreaticoduodenal artery yet still derived form the foregut!
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Old 03-24-2010
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Default Clarification

Quote:
Originally Posted by GNND85 View Post
I have a problem with this question.
I agree with you about the spleen but the some parts of the dueodenum receives blood supply from the inferior pancreaticoduodenal artery yet still derived form the foregut!
Only the first part and half of the second part of the duodenum are derived from the foregut and these are supplied by the superior pancreaticoduodenal artery which is a branch of the gastroduodenal which is a branch of the common hepatic which is a branch of the celiac trunk.

The second second half of the second part of the duodenum and the third part and the fourth part are derived from the midgut and are supplied by the inferior pancreaticoduodenal artery which is a branch of the superior mesenteric artery.
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