MICROANATOMY

ENDOCRINE ORGANS AND RESPIRATORY SYSTEM

RESPIRATORY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which respiratory system structure stops unwanted items (e.g. food) from entering the lungs?
A
Pharynx
B
Larynx
C
Nasal Cavity
D
Epiglottis
Explanation: 

Detailed explanation-1: -It is the function of epiglottis to prevent the entry of food into respiratory tract. Epiglottis is a flap like structure present in the larynx which covers the respiratory tract when food enters the oesophagus.

Detailed explanation-2: -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-3: -How does the epiglottis prevent foods and liquids from entering the larynx? Q. The food is prevented from entering the by a flap-like valve.

Detailed explanation-4: -A cartilaginous flap called epiglottis specifically prevents the entry of food into the glottis (opening of the windpipe) during swallowing.

There is 1 question to complete.