respiration Flashcards

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

trachea

A

air passage to the lungs

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2
Q

alveoli

A

tiny sacks in the lungs to allow oxygen and carbon dioxide to be exchanged

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3
Q

bronchiole

A

runs through the lungs and has alveoli attached to the ends. this ensures that incoming air goes to all the alveoli

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4
Q

ribs

A

protects the heart and the lungs

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5
Q

intercostal muscles

A

connects the ribs together and allows the chest cavity to expand

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6
Q

diaphragm

A

muscle that separates the chest and stomach and it controls inhalation and exhalation

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7
Q

how do we get air into our lungs

A
  1. contract rib cage upward & outward
  2. lungs expand, air sucked in through nose & mouth
  3. diaphragm down, oxygen travels down the trachea to lungs
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8
Q

alveoli adaption

A
  • good blood supply
  • large surface area
  • thin walls, easy for diffusion
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