Anatomy & Physiology › Section U · The digestive system › Topic U.2
The mouth, pharynx, and esophagus
The first half-metre of the digestive tract turns a bite of food into a slippery bolus and delivers it to the stomach in a few seconds, while keeping it out of your airway. This topic follows that journey through the mouth, throat and esophagus.
In this topic
- The mouth and its roof
- The tongue
- Salivary glands and saliva
- Control of salivation
- The teeth
- Worked example: counting teeth
- The pharynx
- The esophagus
- Swallowing in three phases
- Worked example: when food goes down the wrong way
- Common mistakes to avoid
- Key takeaways
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