Human Respiration
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Transcript of Human Respiration
Respiratory Organs:• Sponges,Coelenterates,
Flatworms,etc – No respiratory organs
Earth worms – Moist Skin
Insects – Tracheal tubes
Fishes,Aquatic artropodes,Molluscs – Gills
Reptiles,Birds,Mammals - Lungs
Amphibians - Lungs and Skin
Human Respiratory System
Steps in Respiration
Mechanism of Breathing
Mechanism of Breathing
Respiratory Volumes
IRV
ERV
RV
IC
EC
FRC
VC
TLC
Partial Pressure (in mm Hg)
Exchange of Gases
Alveolus