MCQ IN MEDICINE

MEDICINE MCQ

RESPIRATORY MEDICINE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ acts as a lid over the entrance to the esophagus
A
epiglottis
B
frontal
C
bronchioles
D
alvecli
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: -Throat anatomy The throat includes the esophagus; windpipe, also known as the trachea; voice box, also known as the larynx; tonsils; and epiglottis. Epiglottitis happens when the epiglottis-a small cartilage “lid” that covers the windpipe-swells. The swelling blocks the flow of air into the lungs.

Detailed explanation-3: -The epiglottis has two surfaces; lingual (anterior) and laryngeal (posterior). The lingual surface of the epiglottis is covered by the mucosa of the oral cavity.

Detailed explanation-4: -The epiglottis is an elastic cartilaginous leaf-shaped flap covering the opening of the larynx. It is attached to the internal surface of the thyroid cartilage and projects over the pharynx, allowing the passage of air into the larynx, trachea, and lungs.

There is 1 question to complete.