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A Level Pe - Miss Rex > Respiratory System > Flashcards

Respiratory System Flashcards

1
Q

Order of passage of air

A

Nose , pharynx, larynx, trachea, bronchi, bronchioles, alveoli

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2
Q

What muscles are used during inspiration at rest?

A

Intercostal muscles and diaphragm (contract)

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3
Q

What muscles are used in expiration during rest?

A

Diaphragm and external intercostal muscles relax

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4
Q

What muscles are used during inspiration during exercise?

A 
Diaphragm
External intercostal muscles 
Sternocleidomastoid 
Scalenes
Pectoralis major
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5
Q

What muscles are used during expiration During exercise?

A

Intercostal muscles and abdominals

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6
Q

Gaseous exchange

A

Process by which gasses move passively by diffusion across a surface

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7
Q

What happens to co2 during gaseous exchange?

A

Increases

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8
Q

What happens to o2 during gaseous exchange?

A

Decreases

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9
Q

Features that assist in gaseous exchange

A

Large surface area of alveoli
Large blood supply
Moist thin walls
Lots of capillaries

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10
Q

Tidal volume

A

Air inspired or expired per breath

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11
Q

Minute ventilation

A

Volume of air inspired or expired per minute

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12
Q

Minute ventilation equation

A

Number of breaths per min x tidal volume

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13
Q

Units for minute ventilation

A

Litres/minute

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14
Q

Residual volume

A

Volume of air that remains in lungs after maximum expiration

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15
Q

Expiratory reserve volume

A

Volume of air that can be forcibly expired after a normal breathe

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16
Q

Inspiratory reserve volume

A

Volume of air that can be forcibly inspired after a normal breathe

17
Q

What happens to tidal volume during exercise

A

Increase

18
Q

What happens to inspiratory reserve volume during exercise?

A

Decrease

19
Q

what happens to Expiratory reserve volume during exercise?

A

Slight increase

20
Q

What happens to residual volume during exercise?

A

Remains the same

21
Q

What happens to minute ventilation during exercise?

A

Big increase

A Level Pe - Miss Rex (3 decks)

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