Respiratory System Flashcards

1
Q

What does the respiratory system do?

A

Bring oxygen in, remove carbon dioxide.

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2
Q

Why don’t most dust, pollen, and microorganisms reach your lungs?

A

It’s trapped by mucus before it reaches the lungs.

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3
Q

Name the parts of the respiratory system.

A

Nostrils, nasal cavities, pharynx, larynx, trachea, bronchi, alveoli

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4
Q

What contains the vocal cords?

A

The larynx

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5
Q

What does the epiglottis do?

A

Prevents food or liquids from entering the trachea

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6
Q

What do comes after the trachea?

A

The bronchii (singular: bronchus)

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7
Q

Where does oxygen and carbon dioxide exchange occur in the lungs?

A

The alveoli

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8
Q

What are the stages of breathing?

A

Inhalation

Exhalation

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9
Q

What is the diaphragm?

A

A dome shaped muscle that is used in breathing.

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10
Q

Which direction does the diaphragm move in exhalation?

A

Upward

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11
Q

What can you do to keep your respiratory system healthy?

A
Avoid tobacco and pollution
Tread asthma
Avoid respiratory infections
Get regular exercise
Maintain a healthy weight
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12
Q

What is asthma?

A

A respiratory disorder in which airways become inflamed and narrow. Wheezing, coughing, difficulty in breathing. Can be life threatening.

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13
Q

How many people in the US have asthma?

A

50 million, including 5 million children.

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14
Q

What is bronchitis?

A

An infection of the mucus membranes lining the bronchii. Causes inflammation.

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15
Q

What are cilia?

A

Hairlike structures in airways that sweep mucus and foreign particles.

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