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Abdominal Cavity (1)
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47. Epiploic foramen
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52. Meso…. attachment
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Abdominal recess60.
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70. Stomach Anatomy
OpeningsGastroesophageal:
To esophagus
Pyloric: To
duodenum
Regions
Cardiac
Fundus
Body
Pyloric
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3 muscle layersOblique
Circular
Longitudinal
Regions
Cardiac sphincter
Fundus
BODY
Pyloric sphincter
Inner surface thrown into folds –
Rugae
Contains enzymes that work best at
pH 1-2
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• Divisions– Duodenum (5%)
– Jejunum (<40%)
– Ileum (<60%)
• Runs from pyloric
sphincter to large
intestine
• About 3-6 hours to
move food through
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Longest part of alimentary canalDuodenum
Jejunum
Ileocecal valve
Ileum
Duodenum (“twelve finger widths”) : 25 cm
5%
Jejunum (“empty”):
2.5 m
40 %
Ileum (“twisted”):
3.5 m
55%
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79. Duodenum and Pancreas
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PANCREATIC DUCTSBile Duct
1st
Duodenal
Papillae:
B
Minor
2nd
Major
4th
A
PLICAE
CIRCULARIS
3rd
A – Main Pancreatic Duct
B – Accessory Pancreatic Duct
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Extends from ileocecal valve to anusRegions
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Extends from ileocecal valve to anus6 cm in diameter
1.5 to 1.8 m in length
Consists of
Cecum
Colon
Ascending
Transverse
Descending
sigmoid
Rectum
Anus
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hepatic and splenic flexures
Movements sluggish (18-24 hours)
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I.The large intestine exhibits 3 features not seen in other
area of the digestive system.
the teniae coli
II. Haustra
III. epiploic appendages.
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93. Large intestine gross anatomy
1.5 m long3 strips Tenia coli
longitudinal smooth muscle
Haustra
Epiploic appendages
22.18a
94. Cecum and Appendix
Cecumsac-like, blind pouch
right lower quadrant
Ileocecal valve
Vermiform Appendix
blind tube
masses of lymphoid tissue in
wall
Tonsil-like function