The lower esophageal sphincter is responsible for: a. allowing ...

[laurencescou]

The lower esophageal sphincter is responsible for:
 a. allowing chyme to enter the stomach.
  b. preventing gastric contents refluxing into the esophagus.
  c. adding digestive juices to the bolus of food as it descends the esophagus.
  d. allowing intermittent amounts of stomach contents to enter the duodenum.

Question 2

When eating, a person is protected from food entering the airway primarily by:
 a. closing of the epiglottis.
  b. relaxing muscles in the pharynx.
  c. extending neck when swallowing.
  d. muscles of cheeks form food into a bolus.

[nixon_s]

Answer to Question 1

b

Answer to Question 2

a

[laurencescou]

Thanks for the timely response, appreciate it

[Joy Chen]

TYSM