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Ch. 48 Respiratory
Respiratory System
| Question | Answer |
|---|---|
| How do fish breathe? | -Suck in water high in o2 and low in CO2 -Goes through gills and diffusion so O2 and Co2 switch so the water is now high in CO2 |
| Buccal Pumping | -Fish is actively pushing CO2 rich water away from them |
| Counter Current System | Water is coming in one direction over the gills and blood is flowing the other way -Keeps the rate of diffusion constant and its an efficient way to transport things |
| How do instects breathe? | -With their skin -Breathe in air through spiracle which is right on the skin -Goes through trachea -Through trachiole (takes air to muscles, nerves etc. -Use ventilation, move body parts to create air current at surface |
| How do mammals breathe? | Mouth/Nose --> Trachea --> Bronchi (Primary, Secondary, Teriary) --> Bronchioles --> Aveoli (where gas exchange occurs |
| Diaphragm | Seperates thorax from abdomen -Pushes downward to expand lungs to fill with air |
| Deltoids | -SHoulder muscles -Pulls chest upwards |
| Intercostal Muscles | -Muscles between the ribs -Pushes chest outward |
| Latissimus Dorsi | Pushes chest backwards |
| Tidal Volume | What you take in with a normal breath |
| Residual Volume | How much air is left in your lungs after you breathe |
| Vital Volume | The air you take after a deep breath and exhilation -How much lungs can hold |
Created by:
hiimhaley
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