Respiratory System

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Goblet cells

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11th

20 Terms

1

Goblet cells

________ and cilia are found in trachea and bronchi.

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2

microbes

Goblet cells and cilia protect alveoli in the lungs from inhaled dust and ________.

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3

bronchioles

The walls of the trachea, bronchi and ________ are lined with smooth muscle which can contract and relax.

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4

Trachea

________ is a tube lined with C- shaped supporting rings.

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5

waste

The respiratory system also removes ________ such as carbon dioxide.

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6

smooth muscle

During exercise, ________ will relax which causes airway to expand and allows more air to flow through them.

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7

smooth muscle

Contracting ________ is a cause of asthma.

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8

Goblet cells

________ produce sticky mucus which traps them.

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9

Smooth muscle

________ will contract if toxic gas is present to restrict airflow by narrowing the airways.

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10

Inspiration

Breathing in is known as _________

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11

Expiration

Breathing out is known as __________

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12

nasal cavity

As the air passes through the _______ it is warmed slightly.

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13

trachea

Air must pass through the ________

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14

cartiliage

The C shaped supporting rings are made out of _______

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15

expand

The trachea will ______ to let more air in

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16

diffusion

Gas exchange happens in the alveoli by _______

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17

moist lining

Oxygen dissolves in the __________ so it can diffuse into the blood

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18

concentration gradient

Large capillary network maintains diffusion and _____________

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19

diffusion

Large surface area increases

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20

Thin

______ walls means there is a short diffusion distance

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