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Biology 12 > Respiratory System > Flashcards

Respiratory System Flashcards

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1
Q

Primary function

A

To allow oxygen from the air to enter the blood and carbon dioxide from the blood to exit into the air

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2
Q

Ventilation

A

Term for breathing

Uses both inspiration and expiration

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3
Q

External respiration

A

The exchange of gases between air and blood

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4
Q

Internal respiration

A

The exchange of gases between blood and tissue fluid

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5
Q

Cilia and mucus

A

Located in the nasal cavity

Cleanses the air

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6
Q

How is the air warmed?

A

By the heat of blood vessels

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7
Q

How is it moistened?

A

By the wet surfaces of the nasal cavity and mouth

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8
Q

Pharynx

A

Connects nasal and oral cavity to the larynx

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9
Q

Larynx

A

Considered the voice box

Contains vocal cords

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10
Q

The trachea

A

Connects the larynx to the bronchi

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11
Q

Bronchi

A

Branch of the trachea that leads to the lungs

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12
Q

Bronchiole

A

Small tube that conducts air from a bronchus to alveoli

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13
Q

Alveoli

A

Grapelike air sac found in lungs

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14
Q

Right lung

A

Has 3 lobes

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15
Q

Left lung

A

Has 2 lobes

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16
Q

Diaphragm

A

Muscle that separates the thoracic cavity from the abdominal cavity

17
Q

Pleural membranes

A

Come back to me

18
Q

Inspiration

A

Breathing in

19
Q

Expiration

A

Breathing out

20
Q

Breathing in

A

Diaphragm muscles contract and move down

Rib cage moves up and out

Large volume in thoracic cavity

21
Q

Breathing out

A

Diaphragm relaxes

Ribs move down and in

Decreased air in thoracic cavity increase pressure on lungs and push air out

22
Q

Medulla oblongata

A

Diaphragm and muscle contractions controlled by the MO

23
Q

High c02 and h20

A

Cause breathing to be imitated

24
Q

Oxygen

A

Carried directly in blood

Carried by hemoglobin (hb)

Hb+h20= Hb02

25
Q

Carbine dioxide

A

Carried directly in blood

Carried by hemoglobin

Hb+C02= HbC02 (carbaminohemoglobin)

26
Q

Carbonic acid breaks down to _____ and ______ by using ______

A

Hydrogen and carbonate ions using carbonic anhydrase

C02+H20=H2CO3=H++HCO3

27
Q

Most carbon dioxide is carried as _______

A

Bicarbonate

28
Q

Hydrogen ions

A

Combine with hemoglobin

H++Hb=HHB (reduced hemoglobin)

Biology 12 (9 decks)

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