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Which of the following represents the correct sequence of the passage of food through the human digestive system?
Oesophagus тЖТ Stomach тЖТ Small Intestine тЖТ Large Intestine
Oesophagus тЖТ Small Intestine тЖТ Stomach тЖТ Large Intestine
Stomach тЖТ Oesophagus тЖТ Small Intestine тЖТ Large Intestine
Small Intestine тЖТ Stomach тЖТ Oesophagus тЖТ Large Intestine
Oesophagus тЖТ Stomach тЖТ Small Intestine тЖТ Large Intestine
The food bolus moves sequentially from the oesophagus to the stomach, then to the small intestine for digestion and absorption, and finally to the large intestine for water reabsorption and feces formation.
The food bolus moves sequentially from the oesophagus to the stomach, then to the small intestine for digestion and absorption, and finally to the large intestine for water reabsorption and feces formation.
It is like a conveyer belt in a factory: the food enters at one end (oesophagus), gets processed at different stations (stomach, small intestine), and the waste exits at the end (large intestine).
OSSL тАУ Oesophagus, Stomach, Small intestine, Large intestine
Peristaltic contractions of the oesophageal muscles push the bolus into the stomach where gastric juices denature proteins and activate enzymes. The partially digested chyme then enters the duodenum, where pancreatic enzymes and bile continue digestion, and the majority of nutrients are absorbed in the small intestine. Residual material passes to the large intestine, where water and electrolytes are reclaimed, and bacterial fermentation occurs.
Peristalsis drives the movement of food through the GI tract
Enzymatic digestion and absorption primarily occur in the small intestine
Large intestine reabsorbs water and forms feces
Clinical assessment of gastrointestinal disorders
Design of enteral nutrition formulations
The average length of the small intestine is about 6тАпm, while the large intestine is about 1.5тАпm.
Option B places the small intestine before the stomach, which contradicts the physiological order of digestion.
Option C and D start with the stomach or small intestine, ignoring the mandatory passage through the oesophagus.
A is correct тАФ food follows the natural anatomical route Oesophagus тЖТ Stomach тЖТ Small Intestine тЖТ Large Intestine.
Remember the sequence by the acronym OSSL; linking each letter to the organтАЩs primary function helps recall quickly.