Abdomen In Situ

1
Abdomen In Situ
2
Peritoneal Cavity
3
Arteries of the Mid Gut and Hind Gut

• Superior Mesenteric Artery to the Mid Gut
• Inferior Pancreaticoduadinal
• Jejunal Branches
• Ileal Branches
• Ileocolic artery
• Right Colic
• Middle Colic
• Marginal Artery

• Inferior Mesenteric Artery to the Hind Gut
• Left colic
• Ascending branch (joins the Marginal)
• Descending branch
• Sigmoid Branches
• Superior Rectal Branches

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Mesenteric Arteries of the Gut
Inferior
Superior
5
Origin of the Superior Mesenteric Artery
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Superior Mesenteric Artery in the Mesentery
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Details of the Jejunum
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Details of the Ileum
9
Detail Of Ileocecal Junction
10
Orientation to the Large Intestine
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Large Intestine
12
Features of the Colon
Tenia Coli Haustra Omental (Epiploic) Appendices
13
View of the Inferior Mesenteric Artery
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Details of the Large Intestine
15
Portal Venous Drainage
16
Portal /Caval Anastomosis
Esophageal Veins
Lumbar Veins
Paraumbilical Veins
Rectal Veins
17
Autonomics of the Gut

• Parasympathetics to Fore and Mid Gut
• Vagus Nerve
• Sympathetics to Foregut and Mid Gut
• Thoracic Splanchnics
• Intermesenteric plexus
• Parasympathetics to Hind Gut
• S2-4 spinal segments giving Pelvic Splanchnics to
  the Hypogastric plexis
• Sympathetics to the Hind Gut
• Lumbar and Sacral Splanchnics to the Hypogastric
  plexus/intermesenteric plexi

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Autonomics of the Fore and Mid Gut
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Autonomics of the Gut
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Intermesenteric and Pelvic Plexuses
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Pelvis Plexus
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Rectum and Anal Canal
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Interior of the Rectum/Anal Canal
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Detail of Anal Canal
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Arteries to the Rectum
26
Veins of the Rectum