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biology > Respiratory System > Flashcards

Respiratory System Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Respiratory system includes

A

The Nose
The Trachea
The lungs
Intercostal muscles
Diaphragm

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2
Q

The nose

A

Air normal enters the air passages through the nose

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3
Q

Trachea

A

It is made out of rings of cartilage
The inner lining of the windpipe has two types of cells
Mucus Secreting cells- To trap the dust particles & bacteria in the form of mucus

Ciliated Cells- The cilia moves the mucus to the back of the mouth and it is swallowed

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4
Q

Adaptations Alevolus have

A

Large surface area
Thin & Elastic walls
Moist surface

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5
Q

what is breathing

A

the inhalation of air into lungs

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6
Q

Inhalation

A

External intercostal muscles contract

Rib cage moves upwards & outwards

The diaphragm contracts

The volume of the thoracic cavity increases

The air pressure in the thoracic cavity decreases

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7
Q

Exhalation

A

External intercostal muscles relax

Rib cage moves downwards & inwards

The diaphragm relaxes

The volume of the thoracic cavity decreases

The air pressure in the thoracic cavity increases

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biology (9 decks)

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