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Respiratory Part II
| Question | Answer |
|---|---|
| Eupnea: Hyperpnea: | - quiet breathing; normal - forced breathing |
| What are the two pressure gradients inside the thoracic cavity? | 1. intrapulmonary pressure (inside lungs) 2. intrapleural pressure (within cavity) |
| What is the difference with intrapulmonary pressure? | - -1mm Hg (inhalation) or +1mm Hg (exhalation) - 1 ATM=760 mmHg |
| What is the difference for intrapleural pressure? | - avg. -4mmHg (-756 for suction) |
| Pneumothorax: Atelectasis: | - the tilt that breaks contacts and ruins pressure - collapsed lung result |
| Alveolar Ventilation Rate: | - determines rate of actual oxygen delivery to alveoli - factors in the 150 mL of dead air; unusable; must be subtracted from equation |
| Partial Pressure: | - pressure contributed by single gas - adds up to 760 mmHg - O2 is 20.9% |
| Henry's soda law: | - pressure increases, more gas goes into solution - pressure decreases, gas will leave solution |
| What binds to iron in Hb molecules? New molecule=? | - Oxygen - Oxyhemoglobin |
| In a hb saturated curve, what happens when it sways left? Right? | - Left: keeps, oxygen levels are high - Right: lets go, oxygen levels are low |
| Hb prefers ? What will happen? | - Carbon Monoxide; will never unbind, so you will never receive oxygen |
| Pre Botzinger complex: | - pacemaker for respiration |
Created by:
madelineyork
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