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Science > Gas Exchange > Flashcards

Gas Exchange Flashcards

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1
Q

What is the main function of the respiratory system?

A

To exchange oxygen and carbon dioxide between the body and the environment.

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2
Q

True or False: Oxygen is essential for cellular respiration.

A

True

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3
Q

What is the process of breathing in oxygen and breathing out carbon dioxide called?

A

Gas exchange

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4
Q

Where does gas exchange primarily occur in the respiratory system?

A

Alveoli

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5
Q

What is the name of the dome-shaped muscle beneath the lungs that helps with breathing?

A

Diaphragm

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6
Q

Fill in the blank: The bronchi branch into smaller tubes called ___________.

A

Bronchioles

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7
Q

What happens to the rib cage during inhalation?

A

It expands

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8
Q

What is the name of the process where oxygen is taken in and carbon dioxide is released?

A

Respiration

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9
Q

Which gas is transported in the blood by red blood cells?

A

Oxygen

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10
Q

What is the role of the cilia in the respiratory system?

A

To sweep mucus and debris out of the airways

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11
Q

True or False: The trachea is also known as the windpipe.

A

True

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12
Q

What is the term for the tiny air sacs in the lungs where gas exchange occurs?

A

Alveoli

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13
Q

Fill in the blank: The process of moving air into and out of the lungs is known as ____________.

A

Breathing

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14
Q

What is the name of the flap of cartilage that covers the opening of the trachea during swallowing?

A

Epiglottis

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15
Q

True or False: The left lung has three lobes, while the right lung has two lobes.

A

False

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16
Q

What is the term for the tiny blood vessels surrounding the alveoli where gas exchange occurs?

A

Capillaries

17
Q

What is the name of the substance that lines the airways and traps dust and microbes?

A

Mucus

18
Q

What is the medical term for difficulty breathing?

A

Dyspnea

19
Q

True or False: The process of gas exchange is passive and does not require energy.

A

True

20
Q

What is the term for the volume of air that moves in and out of the lungs during normal breathing?

A

Tidal volume

21
Q

Fill in the blank: The bronchi divide into smaller tubes called ____________.

A

Bronchioles

22
Q

What is the process of gas exchange between the blood and tissues of the body called?

A

Internal respiration

23
Q

What is the name of the enzyme that breaks down carbon dioxide in the blood?

A

Carbonic anhydrase

24
Q

True or False: The respiratory system is responsible for maintaining the body’s acid-base balance.

A

True

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