Term
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Definition
1) Outer longitudinal muscle oriented into 3 strips
2) cause irregular bulges in colon
- haustra |
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Term
| What are epiploic appendages? |
|
Definition
| 1) associated with taeniae coli |
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Term
|
Definition
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Term
|
Definition
1) post. surface of ascending & descending colon
2) no serosa here (retroperitoneal) |
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Term
| What does the ascending branch of the right colic artery anastomose with? |
|
Definition
| 1) The right branch of the middle colic artery |
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Term
| What does the left branch of the middle colic artery supply? |
|
Definition
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Term
| At what vertebral level does the Superior Mesenteric Artery branch off of the aorta? The Inferior Mesenteric? |
|
Definition
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Term
| Is the left colic artery peritoneal or retroperitoneal? |
|
Definition
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Term
| When does the IMA become the Superior Rectal Artery? |
|
Definition
1) Once it crosses the pelvic brim
- supplies proximal rectum |
|
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Term
| What two plexi innervate the colon? |
|
Definition
| Superior & Inferior mesenteric plexi |
|
|
Term
| What does the superior mesenteric plexus supply? |
|
Definition
1) Post-ganglionic sympathetics
2) Pre-ganglionic vagal parasympathetics |
|
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Term
| What does the inferior mesenteric plexus supply? |
|
Definition
1) Post-ganglionic sympathetics
2) Pre-ganglionic pelvic splanchnic (parasympathetic)
- S2-4
3) Inf. Mes. Plexus continues downward as:
- aortic plexus to aortic bifurcation |
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|
Term
| What does the Inf. Mes. Plexus become? |
|
Definition
1) Runs past aortic bifurcation and onto sacral promontory
2) Becomes Superior hypogastric plexus |
|
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Term
| What is the Sup. Hypogastric plexus? |
|
Definition
1) Branches into L & R Hypogastric nerves
- supply pelvic viscera |
|
|
Term
| What do the Hypogastric nerves form? |
|
Definition
1) Inferior Hypogastric plexus (pelvic plexus)
- flanks rectum bilaterally |
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