1 / 28

Let’s Begin by Examining Respiratory Structures in Selected Aquatic Animals

Let’s Begin by Examining Respiratory Structures in Selected Aquatic Animals. Focus on structure and function Focus on the diffusion rates and solubility characteristics of oxygen and carbon dioxide Focus on supplemental means for acquiring sufficient oxygen.

oraliaj
Download Presentation

Let’s Begin by Examining Respiratory Structures in Selected Aquatic Animals

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Let’s Begin by Examining Respiratory Structures in Selected Aquatic Animals • Focus on structure and function • Focus on the diffusion rates and solubility characteristics of oxygen and carbon dioxide • Focus on supplemental means for acquiring sufficient oxygen

  2. Respiration in Unicellular and Small MultiCellular Organisms

  3. Annelid Respiration

  4. Bivalve Mollusc

  5. Crab Gill efferent vessel afferent vessel lamellae = blood flow = water flow branchial chamber

  6. Fish Gill

  7. Concurrent Exchange Countercurrent Exchange 0 100 0 10 10 20 10 20 30 40 90 80 70 60 30 40 50 60 70 80 50 50 90 100

  8. Concurrent Exchange PO2 Length Countercurrent Exchange PO2 Length

  9. Ram ventilation - swimming with open mouth • Obligatory - e.g. some sharks and tuna • Facultative - e.g. mackerel - switch to ram • ventilation at swimming speeds • >0.5 - 1 m•s-1

  10. Terrestrial Respiratory Structures Lungs Mollusca Crustacea Amphibia Reptilia Aves Mammalia Tracheae Insecta (no circulatory fluid involved - tubules branch and deliver air directly to tissues)

  11. Insect Respiration

  12. Open Spiracle in Grasshopper Closed Spiracle in Grasshopper

  13. Insect Tracheal System

  14. positive press. lungs e.g. amphibians suction lungs (subatmospheric press.) e.g. mammals Lungs diffusion lungs e.g. pulmonate snails ventilation lungs e.g. vertebrates

  15. Amphibian (Frog) Lung

  16. Avian Lung

  17. Respiratory Tract

  18. Alveoli

  19. Mammalian Lung trachea pleural cavity bronchus lung diaphragm

  20. air = = exterior intercostals - - diaphragm Inspiration

  21. air Internal intercostals elastic recoil (surface tension) Expiration

More Related