10 Gas Exchange - movement of air Expiration diaphragm&...

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SI Leader: Anita Vijapura Spring 2010 BSC2011 1/14/10 Gas Exchange -Uptake of _______ -Discharge of ______ Three main components: 1) Respiratory medium : 2) Respiratory surface (gas exchangers): Physical Characteristics: a) b) c) d) 3) Ventilation : Animal Respiratory Medium Respiratory Surface Means of Ventilation Fish Grasshopper Frog Human
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SI Leader: Anita Vijapura Spring 2010 BSC2011 1/14/10 The Human Respiratory Cycle Inspiration : diaphragm & rib muscles _____________ (contracts/relaxes) diaphragm moves ____________ (up/down) rib cage _____________ (expands/contracts) volume of thoracic cavity _____________ (increases/decreases) air pressure in the lungs ______________ (increases/decreases)
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Unformatted text preview: movement of air: Expiration : diaphragm & rib muscles _____________ (contracts/relaxes) diaphragm moves __________ (up/down) rib cage ______________ (expands/contracts) volume of thoracic cavity _____________ (increases/decreases) air pressure in the lungs ______________ (increases/decreases) movement of air: Control of Breathing Breathing is under automatic regulation by the breathing control centers in the ________________& the ________________. -When _______ concentration increases, pH levels _____________ (increase/decrease) AS A RESULT, the ________ & ________ of breathing is ____________ (increased/decreased) - O 2 sensors in the ___________ & ____________ react to:...
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