EVERYDAY SCIENCE

SCIENCE

RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The function of larynx which is placed above the trachea is to.
A
Produce sound
B
Absorb O2
C
Sent out CO2
D
Prevent dust
Explanation: 

Detailed explanation-1: -The primary function of the larynx in humans and other vertebrates is to protect the lower respiratory tract from aspirating food into the trachea while breathing. It also contains the vocal cords and functions as a voice box for producing sounds, i.e., phonation.

Detailed explanation-2: -The vocal folds (vocal cords) are attached within the larynx to the largest of the laryngeal cartilages known as the thyroid cartilage or “Adam’s apple". The vocal folds produce sound when they come together and then vibrate as air passes through them during exhalation of air from the lungs.

Detailed explanation-3: -The larynx is the upper opening into the windpipe (trachea), the passageway to the lungs. Epiglottis-a flap of soft tissue and cartilage located just above the vocal cords. The epiglottis folds down over the vocal cords to help prevent food and irritants from entering the lungs.

Detailed explanation-4: -It is an organ in the top of the neck and responsible for the voice produced. There are two vocal cords that are stretched across the larynx in such a way that it leaves a narrow slit between them for the passage of air. The air is forced by the lungs through this slit. Hence, the vocal cords vibrate & produce sound.

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