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15 Cards in this Set
- Front
- Back
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Which muscles are used for forced inspiration
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Sternomastoid
Scalene Rhomboideus major and minor Pectoralis major and minor Serratus anterior External intercostals |
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Sternomastiod...
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lifts thorax
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Scalene and serratus anterior...
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elevate ribs
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Internal intercostals are used in...
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Forced expiration
Depress and invert ribs |
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Diaphragm
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Used in quiet inspiration
Relaxes during quiet expiration |
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Rectus abdominus...
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Used in forced expiration
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During quiet breathing, what percentage are the external intercostals and diaphragm used in normal inspiration?
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80% diaphram
20% external intercostals |
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Quiet expiration is a ________ process and involves the _______ of muscles
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Passive
Recoil |
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What is the function of the diaphragm in quiet inspiration?
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Pulls lungs down
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What is the function of the external intercostals in quiet inspiration?
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lifts rib cage
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What keeps the lungs expanded?
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Pleural cavity
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Alveolar ventilation =
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Respiratory rate x (tidal volume - dead space)
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Vital capacity =
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Tidal volume + IRV + ERV
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Total lung capacity =
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Tidal volume + IRV + ERV + RV
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Functional residual capacity =
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Expiratory reserve volume + reserve volume
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