Types of Repiratory Systems

• None
  • Cellular Respiration
  • They do it via Diffusion
  • Their cell membranes are their respiratory surfaces.
• Simple | See also → Gastrovascular System
• Complex
  • Insects | See also → Tracheal respiratory system
  • Amphibians | See also → Cutaneous system
  • Fishes
    • See also → Gills

  • Lungs

- Nasal Cavity
- Pharynx
- Larynx
- Trachea
- Bronchus (left and right)
- Bronchioles
- Alveolus (Alveolar sac)
- Alveoli
- Reptiles
- Skin is watertight
- Respiratory surface is the lung.
- Birds
- Use lungs.
- Inhales and exhales bring some amount of air in.
- Negative pressure inside provides that vaccuum for air to be sucked in.
- !Bird Lungs Diagram.png
- Air comes in two waves.
- Inhale 1
- Air comes in
- Stored in blood vessels
- Exhale 1
- Air makes its way to other air sacs
- Inhale 2
- More air comes in
- Old air moves to other air sacs and out
- Exhale 2
- Restart cycle

• Echinoderms
  • Blood vessels very close to skin. Near epidermis.