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Respiratory System: Parts and Functions

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Questions and Answers

What is the primary function of the tiny hair follicles in the nostrils?

To provide additional humidity for inhaled air and act as a defense against foreign pathogens (correct)

To prevent food from entering into the larynx

To separate the right nostril from the left nostril

To produce sound for vocals

What is the function of the epiglottis during swallowing?

To allow the passage of air into the lungs

To produce sound for vocals

To fold over the top of the windpipe and prevent food from entering into the larynx (correct)

To prevent the entry of air into the oesophagus

What is the common passage for air and food?

Larynx

Trachea

Nose

Pharynx (correct)

What is the structure that separates the right nostril from the left nostril?

Septum Signup and view all the answers

What is the informal name of the larynx?

Voice box Signup and view all the answers

What is the primary function of the epiglottis in the respiratory system?

To prevent the entry of food into the windpipe Signup and view all the answers

What is the estimated total surface area of the lungs in humans?

50 to 75 sq meters Signup and view all the answers

What is the correct sequence of airflow in the respiratory system?

External nostrils -> Nasal chamber -> Pharynx -> Larynx -> Epiglottis -> Trachea -> Bronchi -> Bronchioles -> Alveoli Signup and view all the answers

What is the function of the C-shaped cartilaginous rings in the trachea?

To give hardness to the trachea and maintain it by completely expanding Signup and view all the answers

What is the difference between the right and left lungs in humans?

The right lung is quite bigger and heavier than the left lung Signup and view all the answers