HEAD NECK
ORAL CAVITY AND TONGUE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
esophagus
|
|
|
trachea
|
|
|
small intestine
|
|
|
eustachian tube
|
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: -The epiglottis is a small, movable “lid” just above the larynx that prevents food and drink from entering the windpipe. Swelling of the epiglottis can completely block the airway. This can lead to breathing or respiratory failure. In this life-threatening condition, the level of oxygen in the blood drops very low.
Detailed explanation-3: -Your trachea’s main function is to carry air in and out of your lungs. Because it’s a stiff, flexible tube, it provides a reliable pathway for oxygen to enter your body.