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Pe > The Cardio-respiratory System > Flashcards

The Cardio-respiratory System Flashcards

1
Q

What is the role the trachea

A

(Or windpipe) carries air from the mouth and the nose to the lungs

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2
Q

What is the role of the bronchi

A

Carries air from the trachea into the lungs

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3
Q

What is the role of bronchioles

A

Carries air from the bronchi to the alveoli

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4
Q

What are the lungs

A

Pair of large spongy organs optimised for exchange between our blood and the air

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5
Q

What is alveoli

A

Many tiny air sacs in the lungs which allow for rapid gaseous exchange to happen

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6
Q

Why is the alveoli good at gaseous exchange

A

Large surface area, thin walls, lots of capillaries.

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7
Q

What is Haemohlbin

A

The red pigments found in red blood cells

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8
Q

What is oxyhaemoglobin

A

Formed when oxygen combines with haemoglobin

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9
Q

What are Abdominal muscles

A

The muscles which helps force air out of the lungs and do speeds up expiration

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10
Q

Spirometer trace

A

Is a measurement of lung volume

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11
Q

What is tidal volume

A

The volume of air breathed in or out during an normally breath at rest

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12
Q

What is the expiratory reverse volume (ERV)

A

The additional air that can be forcibly exhaled after the expiration of a normal tidal volume

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13
Q

What is the inspiration reverse volume (IRV)

A

The additional air that can be forcibly inhales after the inspiration of a normal tidal volume

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14
Q

What is Residual volume

A

The volume of air that remains in the lungs after a maximal expiration

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16
Q

Inspiring

A

Breathing in

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17
Q

Expiring

A

Breathing out

18
Q

Cardiac cycle

A

The process of the heart going through the stages of systole and diastole in the atria and ventricle

19
Q

Haemoglobin

A

The substance in red blood cells which transports oxygen and carbon dioxide

20
Q

Arteries

A

These have thick walls and carry oxygenated blood at high pressure away from the heart

21
Q

Veins

A

These carry deoxygenated blood back to the heart and they have thinner walls

22
Q

Capillaries

A

These are microscopic vessels that allow carbon dioxide, oxygen and waste to pass their very thin walls

23
Q

Cardiac output

A

Is the amount of blood which is ejected from the heart in one minute. Stroke volume x heart rate

24
Q

Stroke volume

A

The amount of blood pumped out of the heart by each ventricular during one contraction

25
Q

Heart rate

A

The number of times the heart beats per minute

Pe (25 decks)

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