a complete written description on the anatomy of gastrointestinal tract with MNEUMONICs. An organised description on the arteries, nerve, and lymph innervating the GI tract.
Anatomy of the Gastrointestinal System
Abdomen-
Abdominal wall-
• From thorax to pelvis
• Composed of skin, facia, and muscle
• Assists in breathing
• Anchored to the ribs, lumbar vertebrae,
the bony pelvis
• Protects and supports viscera within
Function-
• Move and
stabilise the
trunk
• Support and
protect the
abdominal
viscera
• Create intra-
abdominal
pressure that is
crucial in
digestion and
respiration
Parietal peritoneum-
* the peritoneum lining the
walls
Visceral peritoneum-
* the peritoneum covering the
viscera
* Drives from splanchnic
mesoderm
, The vertical line- from the xiphoid process of
the sternum to the pubic symphysis
The horizontal line- passing through numbilicus
The primary organs:
• Stomach
• Small intestine
• Large intestine
The accessory organs:
• Liver
• Gallbladder
• Pancreas
• Spleen
• Kidneys- retroperitoneal organ
Parietal cavity- between parietal and visceral layers
Ascites- fluid accumulation in the parietal cavity
Mesenteries- folds of peritoneum and posterior of the
cavity carries blood vessels, nerves, and lymphatics to
gut
Blood vessels and lymphatics- travels from the vessels
(eg. Aorta or IVC) long the posterior abdominal wall.
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