Respiratory system Flashcards

1
Q

Nasal Cavity

A

Filters, warms & moistens air before it enters the lungs.
Contains smell receptors.

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2
Q

Pharynx / Throat

A

Air from the nasal cavity passes through on the way to the lungs

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3
Q

Trachea

A

Carries air to and from the lungs
Lined with a mucus membrane and cilia
The cilia move mucus and trapped particles upwards to be expelled.

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4
Q

Bronchi

A

Two primary bronchi branches from the trachea
Divides into secondary bronchi.

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5
Q

Alveoli

A

Tiny air sacs that make up most of the lung at the end of the bronchioles
Covered in capillaries for gas exchange

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6
Q

Bronchioles

A

Very fine tubes with walls of smooth muscles
The finest of them end in alveoli

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7
Q

Lungs

A

Occupies most of the chest cavity
Covered in pleural membrane

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8
Q

Ribs

A

Structure and support for the chest and lungs

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9
Q

Intercostal muscles

A

Muscles between the ribs
Pulls the ribs up and out when inhaling
Pulls the ribs down and in when exhaling

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10
Q

Diaphragm

A

Separates the chest from the abdomen
Contracts and flattens down to make more space for the lungs to take in air

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