Swallowing Reflex

Question 1

What is deglutition

Answer 1

swallowing

Question 2

3 phases of swallowing

Answer 2

• oral phase
• pharyngeal phase
• esophageal phase

Question 3

Which phases of swallowing are voluntary/involuntary

Answer 3

• oral phase: voluntary
• pharyngeal phase: involuntary
• esophageal phase: involuntary

Question 4

What happens in each swallowing phase

Answer 4

• oral phase: tongue collects food and forms a ball against the palate
• pharyngeal phase: soft palate and tongue root blood food from entering the nasal cavity and breathing suspends
• esophageal phase: peristalsis occurs and propels the food down the esophagus