Lungs & Mechanics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the functions of the Pleurae? | Lubricate and protect Lungs from Friction
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| What is the composition of the Pleurae? | Serous Membrane
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| What comprises the Pleurae? | 1. Visceral layer; 2. Parietal layer
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| Why is the LEFT Lung smaller than the RIGHT? | to make room for the HEART
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| How many Lobes are in the RIGHT Lung? | 3 = Superior, Middle, Inferior
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| How many Lobes are in the LEFT Lung? | 2 = Superior, Inferior
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| What causes Inspiration (Inhalation)? | CONTRACTION of Diaphragm --> Thoracic EXPANSION --> LOWERED Intrathoracic pressure --> Atmospheric Air drawn IN
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| What are the Synergistic Muscles involved in Inspiration? | EXTERNAL Intercostals, Sternocleidomastoids
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| What is the function of the External Intercostal muscles during Inspiration? | RAISE Ribs
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| What is the function of the Sternocleidomastoid muscles during Inspiration? | RAISE Clavicles
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| When are Synergistic Muscles employed in Respiration? | for DEEP Inhale or FORCEFUL Exhale
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| During contraction the Diaphragm is in what position? | Lowered
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| When relaxed the Diaphragm is in what position? | Raised
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| What causes Expiration (Exhalation)? | Thoracic SHINKAGE --> Intrathoracic pressure RAISED --> Air forced OUT through upper Airways
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| What are the Synergistic muscles involved in Expiration? | INTERNAL Intercostals, Abdominal group
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| What function do the INTERNAL Intercostal Muscles serve during Expiration? | DEPRESS Ribs
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| What function do the Abdominal group muscles serve during Expiration? | ELEVATE Liver against the Diaphragm
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Created by:
kristel387
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