MCQ IN MEDICINE

MEDICINE MCQ

RESPIRATORY MEDICINE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When swallowing liquid or food, the ____ closes the opening to the larynx.
A
glottis
B
Eustachian tube
C
thyroid cartilage
D
epiglottis
Explanation: 

Detailed explanation-1: -The epiglottis is usually upright at rest allowing air to pass into the larynx and lungs. When a person swallows the epiglottis folds backward to cover the entrance of the larynx so food and liquid do not enter the windpipe and lungs. After swallowing the epiglottis returns to its original upright position.

Detailed explanation-2: -When you swallow, the free end of your epiglottis flips backward to cover the opening of your larynx. When food or fluid gets close, the free end of your epiglottis flips up and pushes food or liquid away from your larynx toward your esophagus.

Detailed explanation-3: -The opening of the larynx is called the glottis. The glottis can be covered by a piece of elastic cartilage called the epiglottis. When we swallow, it forces the epiglottis down to cover the glottis, directing food into the esophagus and preventing it from moving into the airway.

There is 1 question to complete.