Structureof the humangas exchange system

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Why are the lungs located inside the body?
air isn't dense enough to support them and the body would lose water and dry out
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What are the lungs supported by?
ribcage (+ intercostal muscles)
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Which is the correct order that air flows in when bretahing in?
nasal/ oral cavity, trachea, bronchi, bronchioles, alveloi -> capillaries
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what keeps the trachea from collapsing when the air pressure inside them fall as a result of breathing in?
Cartilage rings
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What are the tracheal walls made up of?
epithelium and goblet cells
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what are the bronchi?
two divisions of the trachea responsible for leading air to each lung and producing mucus to trap dirt (+cilia to move to throat)
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What are bronchioles?
series of branching subdivisions of the bronchi. their walls made with muscle cells and lined with epithelial cells. Muscle contricts to control the flow of air in + out alveoli
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Why must a large volume of oxygen be stored and CO2 removed in large mammals?
they have a large volume of living cells as well as a high body temp, metabolism and respiratory rate
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Other cards in this set

Card 2

Front

What are the lungs supported by?

Back

ribcage (+ intercostal muscles)

Card 3

Front

Which is the correct order that air flows in when bretahing in?

Back

Preview of the front of card 3

Card 4

Front

what keeps the trachea from collapsing when the air pressure inside them fall as a result of breathing in?

Back

Preview of the front of card 4

Card 5

Front

What are the tracheal walls made up of?

Back

Preview of the front of card 5
View more cards

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