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Abdominal distension occurs when substances, such as air (gas) or fluid, accumulate in the abdomen causing its expansion. [1] It is typically a symptom of an underlying disease or dysfunction in the body, rather than an illness in its own right.
Distension (spelled distention in many style regimens) generally refers to an enlargement, dilation, or ballooning effect. It may refer to: It may refer to: Abdominal distension , typically a symptom of an underlying disease or dysfunction in the body, rather than an illness in its own right
Gastric distention is the enlargement of the stomach, and can be due to a number of causes. [citation needed]Physiologic (normal) gastric distension occurs when eating. . Distension of the upper stomach stimulates the secretion of stomach acid, while distension of the lower stomach stimulates gastrin secret
This impaired filling causes the increased blood flow to back up into the venous system, causing the jugular vein distention (JVD) and is seen clinically in the internal jugular veins becoming more readily visible. [citation needed]
This causes symptoms due to the shift of fluid into the intestinal lumen, with plasma volume contraction and acute intestinal distention. [3] Osmotic diarrhea, distension of the small bowel leading to crampy abdominal pain, and reduced blood volume can result. Late dumping syndrome occurs 2 to 3 hours after a meal.
Beck's triad is a collection of three medical signs associated with acute cardiac tamponade, a medical emergency when excessive fluid accumulates in the pericardial sac around the heart and impairs its ability to pump blood.
Vagovagal reflex: Distention, or stretching, activates an afferent pathway which in turn stimulates efferent response from the dorsal nucleus of the vagus nerve. Stimulation of acid secretion occurs as it does in the cephalic phase.
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