The muscular tube that carries the bolus from the pharynx to the stomach is the
Correct answer: C. oesophagus
- A. trachea
- B. larynx
- C. oesophagus
- D. small intestine
Explanation
The oesophagus moves the bolus by waves of peristalsis in a matter of seconds. The trachea carries air, a fact the swallowing mechanism protects by closing it off.
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About Human Digestive System
The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.
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