The oral and pharyngeal phases of swallowing take place very rapidly and last about
High-Yield Explanation
Deglutition is an act of swallowing, a process by which food is passed from mouth into stomach. It occurs in 3 stages,
Oral stage - voluntary
Pharyngeal stage - involuntary
Oesophageal stage - involuntary
The whole process of swallowing through oral and pharyngeal stage takes place within 1-2 seconds.