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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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- Spring '10
- Biology, Rib, Anita Vijapura, Anita Vijapura Spring