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Physiology LE 2: Respiratory Physiology I

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Physiology LE 2: Respiratory Physiology I

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Questions and Answers

What does an FEV1 of 60% predicted indicate?

Restrictive lung disease

Normal lung function

Chronic bronchitis

Obstructive lung disease (correct)

What is the normal range for FEV1?

> 60%

< 80%

> 80% (correct)

< 60%

What is the term for lung disease characterized by an FEV1 < 80%?

Pulmonary fibrosis

Restrictive lung disease

Obstructive lung disease (correct)

Chronic bronchitis

What test was used to measure FEV1?

Spirometry Signup and view all the answers

What is FEV1?

Forced expiratory volume in the first second Signup and view all the answers

What is the significance of Figure 69?

It shows the spirometry results Signup and view all the answers

What is the percentage of predicted FEV1 in the given result?

60% Signup and view all the answers

What is the primary factor that affects airflow in turbulent flow?

Density Signup and view all the answers

What type of flow occurs when the airflow is high, gas density is high, or the tube radius is large?

Turbulent flow Signup and view all the answers

How does the pressure difference relate to the flow in turbulent flow?

The pressure difference is much greater than the flow Signup and view all the answers

What is the dominant factor influencing resistance in turbulent flow?

Density Signup and view all the answers

Which of the following conditions is NOT a characteristic of turbulent flow?

Low gas density Signup and view all the answers

What is the relationship between the pressure difference and the flow in laminar flow?

The pressure difference is directly proportional to the flow Signup and view all the answers

Which type of flow is characterized by smooth, continuous motion?

Laminar flow Signup and view all the answers

What is the primary difference between laminar and turbulent flow?

The motion of the fluid Signup and view all the answers

Which of the following flows is NOT a type of fluid flow?

Solid flow Signup and view all the answers

What is the term used to describe the flow that occurs when the airflow is neither laminar nor turbulent?

Transitional flow Signup and view all the answers