Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

21 Cards in this Set

  • Front
  • Back
respiratory surfaces are
thin and have large areas (maximize gas exchange)
cellular respiration
most efficient catabolic pathway for the production of ATP in which oxygen is consumed
outerskin (worms)
moist skin allows for exchange of gaes by diffusion
surgaces area of gill > surface area of body
countercurrent exchange
opp. direction of flowing between blood and oxygen
increase flow of respiration medium over resp. surface
tracheal system (insects)
air tubes branch throughout body
trachea is the
largest tubes-open to outside
diffusion thru this brings in ozygen and removes CO2 to suppost cellular respiration
ciculatory systems traponsorts gases between lungs and body and has a moist surface
lung size and complexity
correlated with animals metabolic rate
pisitive pressure breathing
pushing air into lungs
neg. pressure breathing (humans)
pulling air into the lungs
enter thru nostrils and flows thru nasal cavity
epiglottis covers windpipi wen food is swallowed
trachea brachnes
branches into two bronchi tubes-each to each lunch
bronchiolies end in
end in alveolis( cluster of air sacs)
bronchus is
inside the lunds, branching into bronchiloies (finer tubes)
steps of breathing
inhale thru nostil and thru nasal cavity-thru pharnyx and larynx-thru windpipe- air into each bronchi tube- then to brinchiolis and then into aveoli-
small blood vessels with thin walls
capillaries have thin wals because
air easily seeps thru into bloodstream
muscle that controls the breathing process
relaxes-air in lungs and chest collapses