Questions: Which part of the body is located in the throat and guards the trachea entrance to prevent fluid and food from entering it when a person swallows? a. Lumen b. Epiglottis c. lleum d. Pyloric sphincter

Which part of the body is located in the throat and guards the trachea entrance to prevent fluid and food from entering it when a person swallows? a. Lumen b. Epiglottis c. lleum d. Pyloric sphincter
Transcript text: Which part of the body is located in the throat and guards the trachea entrance to prevent fluid and food from entering it when a person swallows? a. Lumen b. Epiglottis c. lleum d. Pyloric sphincter
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Solution

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The answer is b. Epiglottis.

Explanation for each option:

a. Lumen: The lumen is the inside space of a tubular structure, such as an artery or intestine. It is not located in the throat and does not guard the trachea entrance.

b. Epiglottis: The epiglottis is a flap of tissue located in the throat that covers the entrance to the trachea during swallowing, preventing food and fluid from entering the airway. This is the correct answer.

c. Ileum: The ileum is the final section of the small intestine, involved in the absorption of nutrients. It is not located in the throat and does not have a role in guarding the trachea.

d. Pyloric sphincter: The pyloric sphincter is a valve that controls the passage of food from the stomach to the small intestine. It is not located in the throat and does not guard the trachea entrance.

In summary, the epiglottis is the part of the body located in the throat that guards the trachea entrance to prevent fluid and food from entering it when a person swallows.

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