Define deglutition. What is its effect on respiration?

Explanation

### Step-by-Step Solution:

1. **Definition of Deglutition**:
- Deglutition is the process of swallowing food. It involves the movement of food from the mouth through the pharynx and into the esophagus.

2. **Process of Deglutition**:
- When we chew food, it gets mixed with saliva, which contains enzymes like salivary amylase that begin the digestion of starch.
- The saliva also provides lubrication and adhesion, making it easier to form a bolus (a soft mass of chewed food).
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