Stomach Anatomy and Pathology . Week 4- Feeling Tired Skye Poulton . The stomach is Intraperitoneal Lesser omentum has superior attachment to liver by lesser curvature Greater omentum suspended from greater curvature of stomach and loops back up to attach to transverse colon.
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Stomach Anatomy and Pathology
Week 4- Feeling Tired
The stomach is Intraperitoneal
Has four regions
ie. important histopathology feature
Acute Gastritis - a transient mucosal inflammatory process that may be asymptomatic or cause variable degrees of epigastric pain, nausea, and vomiting. In more severe cases there may be mucosal erosion, ulceration, hemorrhage, hematemesis, melena, or, rarely, massive blood loss.
Pathophysiology: The gastric lumen is strongly acidic with pH close to 1. This harsh environment contributes to digestion but also has the potential to damage the gastric mucosa, if any of the protective mechanisms that have evolved are disrupted.
This diagram illustrates the progression from more mild forms of injury to ulceration that may occur with acute or chronic gastritis
Autoimmune gastritis is characterized by:
Pathogenesis: believed that CD4+ T cells directed against parietal cell components, including the H+,K+-ATPase, are the principal agents of injury. This is supported by the observation that transfer of H+,K+-ATPase-reactive CD4+ T cells into mice results in gastritis and production of autoantibodies.
Vitamin B12 has no appreciable toxicity level………. So no risk to her health of continuing B12 injections.