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6 Cards in this Set
- Front
- Back
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Medullary resp center |
1. Composed of dorsal and ventral resp group 2. Controls cycles of inspiration and expiration |
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Dorsal resp group |
Control inspiration |
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Ventral resp group |
1. Controls expiration 2. Inactive during quiet, relaxed respiration 3. Resp drive for increased pulm ventilation increases, acts as overdrive system to increase ventilation |
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Pneumotaxic center |
1. Influences rate and depth of inspiration 2. Signals to dorsal resp group and triggers end of inspiratory phase -> limits depth inspiration 3. Can increase RR |
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Apneustic center |
1. Stim depth of inspiration 2. Fine tunes transition from inspiration to expiration |
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Hering Breuer reflex |
1. Initiated as lung inflates 2. Stretch receptors in lungs signals to dorsal resp group to terminate inspiration 3. Lung over inflation (>1500mL TV) -> feedback loop to end inspiration 4. Can increase RR |
