Respiration in Animals
At the end of the lecture, students should be able to:
• List the major types of respiratory organs and their
properties that enhance respiration.
• Describe correctly how gills are ventilated in fish.
• Describe correctly open respiratory system in some
terrestrial and aquatic insects.
• List some adaptations that enhance respiration in selected
terrestrial and aquatic insects.
• Note differences in respiration in amphibians, birds and
mammals.
, Respiration in Animals
Respiratory organs
• Three major types: gills, lungs and tracheae
Gills
• Generally, if respiratory surface is turned out (forming
evagination) it is called a gill.
• Effective respiratory organ
- Large surface area & thin cuticle
• Not suitable for atmospheric respiration
- cannot support their weight in air (not rigid enough)
- surfaces of gills tend to stick together
- surface area reduced considerably
• Most fish, when out of water, rapidly become asphyxiated.
, Respiration in Animals
sharon-taxonomy2009-p2.wikispaces.com
At the end of the lecture, students should be able to:
• List the major types of respiratory organs and their
properties that enhance respiration.
• Describe correctly how gills are ventilated in fish.
• Describe correctly open respiratory system in some
terrestrial and aquatic insects.
• List some adaptations that enhance respiration in selected
terrestrial and aquatic insects.
• Note differences in respiration in amphibians, birds and
mammals.
, Respiration in Animals
Respiratory organs
• Three major types: gills, lungs and tracheae
Gills
• Generally, if respiratory surface is turned out (forming
evagination) it is called a gill.
• Effective respiratory organ
- Large surface area & thin cuticle
• Not suitable for atmospheric respiration
- cannot support their weight in air (not rigid enough)
- surfaces of gills tend to stick together
- surface area reduced considerably
• Most fish, when out of water, rapidly become asphyxiated.
, Respiration in Animals
sharon-taxonomy2009-p2.wikispaces.com
