Questions and Answers
What is the average length and capacity of the stomach when empty?
The stomach is approximately 25 cm long and has a capacity of 50 ml when empty.
Describe the shape and location of the stomach within the human body.
The stomach is J-shaped to pyriform and occupies the epigastric, umbilical, and left hypochondrium regions.
What anatomical features are associated with the stomach?
The stomach has two orifices: cardiac and pyloric, two curvatures: greater and lesser, and two surfaces: anterosuperior and posteroinferior.
How does the position of the stomach vary among individuals based on body habitus?
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What is the maximum capacity of the stomach when extremely full?
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Study Notes
Stomach Anatomy and Capacity
- The stomach is a muscular, distensible organ situated between the esophagus and small intestine.
- Length measures approximately 25 cm, with a capacity ranging from 50 ml when empty to 1.0-1.5 liters after a meal and up to 4 liters when extremely full.
Location
- Positioned mainly in the left upper quadrant of the abdomen, covering the epigastric, umbilical, and left hypochondrium regions.
- Comprises around two-thirds that are protected under the ribs.
- Vertically aligned in tall individuals, while shorter individuals display a more horizontal orientation.
- Located at the vertebral levels of T10 to L3.
External Features
- Contains two significant orifices: the cardiac orifice at the esophageal end and the pyloric orifice leading to the small intestine.
- Features two curvatures: the greater curvature on the outer side and the lesser curvature on the inner side.
- Exhibits two surfaces: anterosuperior (front and top) and posteroinferior (back and bottom).
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Description
Explore the anatomy and location of the stomach, a vital organ in the digestive system. Learn about its shape, size, and position within the body. This quiz will test your knowledge on the various aspects of stomach anatomy.
