Flow and Pressure Flashcards by Rachel Wheeler

Q

Ventilation refers to the…

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Q

P alv refers to the…

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Q

When alveolar partial pressure is less than the atmospherical partial pressure…

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Q

When alveolar partial pressure is greater than the atmospherical partial pressure…

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Q

When there is no air flow in or out of the lungs, the pressures throughout the…

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Q

F = ?

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Q

When atmospherical partial pressure is equal to alveolar partial pressure the…

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Q

Boyle’s Law

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Q

Intrapleural Pressure

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Q

Elastic recoil is the property of…

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Q

Intrapleural pressure is…to atmospheric pressure

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Q

If the intrapleural pressure equaled the alveolar pressure…

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Q

Transpulmonary Pressure

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Q

The alveolar partial pressure should always be greater than the…

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Q

Transpulmonary pressure is static meaning that…

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Q

Transpulmonary pressure does not cause… but it does determine…

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Q

Sequence of Events During Inspiration

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Q

Sequence of Events During Expiration

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Q

Airway Resistance

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Q

Inertia of the respiratory system:

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Q

Resistive Forces

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A

Q

Laminar Flow

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A

Q

Transitional Flow

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Q

Turbulent Airflow

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A

Poiseuille's Law for Laminar Flow

The total airway resistance in healthy adults varies between...

The total airway resistance in the large airways is...

The total airway resistance in the small airways is...

Airway Resistance in Disease Conditions

Lung Compliance

A low lung compliance means that...

CL measures the

Lung compliance is determined by...

CL = ?

Emphysema

Pulmonary Fibrosis

Alveolar Surface Tension

How does surfactant prevent the lung from collapsing?

Surfactant hydrophillicand hydrophobic properties

Infant respiratory distress (IRDS):

Gas molecules are constantly in motion and this motion exerts...

Dalton's Law:

Partial pressure of gases is calculated by...

Diffusion has a ...relationship with surface area

Diffusion has a...relationship with thickness

The greater the difference in pressure between two side of a membrane the...

The more soluble the gas is through that membrane...

The greater the molecular weight...

The partial pressure of Co2 is greater in the alveoli while the partial pressure of oxygen is...

The partial pressure of oxygen is greater in the atmosphere than the alveoli:

Determinants of Alveolar Oxygen and CO2 Partial Pressures