darbymk6715 darbymk6715
  • 07-01-2018
  • Biology
contestada

What part of the gi tract prevents a person from choking while swallowing?
a. pyloric sphincter
b. epiglottis
c. upper esophageal sphincter
d. mouth?

Respuesta :

desirayjt
desirayjt desirayjt
  • 07-01-2018
The answer to this question is C
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