ANIMAL RESPIRATION

Mrs. Sandy Gómez

ANIMAL RESPIRATION

0Functions of the respiratory system:

0 Take in O2

0 Eliminate CO2

0 Eliminate water vapor

ANIMAL RESPIRATION

0Characteristics all animal respiratory systems share:

0 Moist and large surface area

0 Selectively permeable membrane that promotes

diffusion

0 Relative concentrations of O2 and CO2

ANIMAL RESPIRATION

0 Respiratory surfaces in aquatic animals:0Gills (fish and aquatic invertebrates) 0Lungs (aquatic mammals and reptiles)

ANIMAL RESPIRATION0 Respiratory surfaces in terrestrial animals:

0Lungs (mammals, reptiles, amphibians, birds)0Book lung (spiders, scorpions)0Tracheal tubes (insects)0Skin (amphibians)

ANIMAL RESPIRATION

ANIMAL RESPIRATION

0What are the functions of the respiratory system?

0What are the characteristics that all animal’s

respiratory system share?

0How do aquatic animals breathe?

0How do terrestrial animals breathe?