Respiratory System Flashcards

1
Q

Primary Functions

A

move fresh air into your body while removing waste gases

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2
Q

Secondary Functions

A

voice production, body temperature and acid-base regulation, and the sense of smell

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3
Q

Conducting Zone

A

The conducting zone consists of all of the structures that provide passageways for air to travel into and out of the lungs: the nasal cavity, pharynx, trachea, bronchi, and most bronchioles.

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4
Q

Respiratory Zone

A

respiratory zone is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar ducts, and alveoli.

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5
Q

Nose

A

Your nose is part of your respiratory system. It allows air to enter your body, then filters debris and warms and moistens the air. Your nose gives you a sense of smell and helps shape your appearance. Many common symptoms affect your nose, such as a stuffy nose and nosebleed.

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6
Q

Pharynx

A

The pharynx, usually called the throat, is part of the respiratory system and digestive system. It carries air, food and fluid down from the nose and mouth. The pharynx is the site of common illnesses, including sore throat and tonsillitis.

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7
Q

Larynx

A

Your larynx is part of your respiratory system. It’s a hollow tube that lets air pass from your throat (pharynx) to your trachea on the way to your lungs. It also contains your vocal cords and is essential to human speech, so it’s often called the voice box.

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8
Q

Trachea

A

Your trachea (TRAY-kee-uh) is a long, U-shaped tube that connects your larynx (voice box) to your lungs. The trachea is often called the windpipe. … When you breathe in, air travels from your nose or mouth through your larynx. It then passes through your trachea to your bronchi.

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9
Q

Alveolar duct

A

Alveolar ducts are tiny ducts that connect the respiratory bronchioles to alveolar sacs, each of which contains a collection of alveoli (small mucus-lined pouches made of flattened epithelial cells). They are tiny end ducts of the branching airways that fill the lungs.

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10
Q

Alveolus

A

The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body.

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11
Q

Alveolar sac

A

Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in and keep your body going. Although they’re microscopic, alveoli are the workhorses of your respiratory system. You have about 480 million alveoli, located at the end of bronchial tubes.

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