revision q: respiratory system Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

When air is moving from the pharynx to the trachea what does it pass through?

A

the larynx

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2
Q

What is on of the lower respiratory tract organs?

A

the trachea

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3
Q

What is the glottis?

A

it is the vocal folds and the slitlike gap between them that form the entrance of the trachea

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4
Q

When someone complains about something going down the “wrong hole” what structural barrier hasn’t functioned properly ?

A

the epiglottis

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5
Q

What is the role of cilia in the airways?

A

they create a rental current to move contaminated mucus towards the pharynx for swallowing

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6
Q

Are bronchioles smaller than bronchi?

A

yes they are

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7
Q

What are the tiny air sacs in the lungs surrounded by?

A

they are surrounded by capillaries

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8
Q

What direction will air always flow?

A

it will flow from a high area of pressure to a low pressure

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9
Q

What happened durning inspiration?

A

the ribs move superiorly meaning the internal intercostal muscles contract and lift the ribs, increasing the volume of the thoracic cavity

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10
Q

How many molecules of oxygen is needed to be bounded to the haemoglobin for it to be fully saturated?

A

four

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11
Q

If a patient has 95% oxygen saturation what does that mean?

A

That 95 out of 100 of possible bindings sites on haemoglobin are occupied with oxygen molecules. this means there are 5% of the possible oxygen binding sits the are empty

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