Term
| HCO3- binds to H+ and takes it out of the blood. It's the H+ that makes the blood acidic. |
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Definition
| How does HCO3- help buffer the blood? |
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Term
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Definition
| If you are breathing faster, the PA is firing off impulses more (quickly/slowly)? |
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Term
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Definition
| What factors most determine the rate of breathing? |
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Term
| Dorsal group and normal breathing rate |
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Definition
| The pons regulates which part of the MRA? |
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Term
| external intercostals, internal intercostals, pectoralis minor, sternocleidomastoid |
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Definition
| The ventral group would control which muscles? |
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Term
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Definition
| This maintains the normal rhythm of breathing. |
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Term
| digestion of food (amino acids, fatty acids. .) acidic food/drink, lactic acid production, excess CO2 |
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Definition
| What are some factors that can cause blood pH to go down? |
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Term
| pneumotaxic area and the medullary rhythmicity area |
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Definition
| What are the two parts of the respiratory center? |
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Term
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Definition
| What chemoreceptors are located in the medulla? |
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Term
| When you breathe rapidly and deeply and release too much CO2. |
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Definition
| What is hyperventilation? |
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Term
| When you are breathing too slowly and CO2 is accumulating in the blood. |
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Definition
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Term
| stretch receptors in the lung tissue fire when they are stretched, and then the resp. center tells muscles to relax, so they don't overinflate the lungs. |
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Definition
| What keeps the lungs from overinflating? |
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Term
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Definition
| What nerve tells the diaphragm to contract? |
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Term
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Definition
| This maintains the forcefullness or depth of breathing. |
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Term
| Carotid arteries and aorta |
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Definition
| Where is O2 concentrations measured? |
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Term
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Definition
| Where is the pneumotaxic area? |
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Term
| blood CO2 levels decrease and the pH goes up. The rise in blood pH causes vasoconstriciton of carotid arteries and less O2 reaches the brain. |
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Definition
| Why do you faint when you hyperventilate? |
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