Understanding Coughs

What was the main reason Sum decided to hold in his cough during class?

• He wanted to avoid drawing attention.

• He believed it was a form of exercise.

• He was trying to impress his classmates.

• He thought it would make him feel better.

What is the primary function of coughing according to the video?

• To clear the airways of irritants.

• To improve lung capacity.

• To entertain others.

• To help with digestion.

Which of the following is NOT a common cause of coughing mentioned in the video?

• Common cold

• Excessive exercise

• Allergies

• Flu

What happens first when the brain activates the cough response?

• The epiglottis opens.

• The rib muscles relax.

• A large volume of air is inhaled.

• The windpipe is closed.

Why does coughing tend to worsen at night?

• Gravity causes mucus to accumulate in the throat.

• The brain suppresses the cough reflex more at night.

• The body is more active at night.

• The air is cooler at night.