Exam 12: The Respiratory System

Match the effects on the rate of gas transfer, labelled a. through c., with the changes listed. (Options may be used more than once or not at all.) -the effect of tissue oedema on O₂ and CO₂ exchange between the surrounding cells and blood

(Multiple Choice)

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Question 81

Pulmonary surfactant contributes to lung stability by ____________________ the surface tension.

(Short Answer)

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Question 82

What is the last step that produces an inspiration

(Multiple Choice)

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Question 83

The most important factor controlling respiration is the PO₂ of arterial blood.

(True/False)

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Question 84

If the tidal volume is 500 mL and the anatomic dead space volume is 150 mL, only 350 mL of air enters the alveoli during inspiration.

(True/False)

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Question 85

Increased acidity at the tissue cells stimulates increased dissociation of oxyhaemoglobin.

(True/False)

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Question 86

Alveolar collapse may occur when pulmonary surfactant secretion drops.

(True/False)

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Question 87

The alveolar wall is [how many ] cell layer(s) thick.The wall of the pulmonary capillaries surrounding an alveolus is cell [how many ] layer(s) thick.

(Short Answer)

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Question 88

Systemic arterial PCO₂ is less than tissue PCO₂.

(True/False)

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Question 89

Describe the mechanics of ventilation.

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Question 90

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Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.) -maximum volume of air that the lungs can hold

(Multiple Choice)

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Question 91

Match the effects on the rate of gas transfer, labelled a. through c., with the changes listed. (Options may be used more than once or not at all.) -the effect of a fall in atmospheric PO₂ on O₂ exchange within the lungs

(Multiple Choice)

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Question 92

Which of the following does NOT happen during inspiration

(Multiple Choice)

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Question 93

Which of the following does NOT happen when the diaphragm contracts

(Multiple Choice)

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Question 94

At the systemic capillaries, the PO₂ is in the range of the steep portion of the O₂-Hb curve.

(True/False)

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Question 95

Which of these conditions would result in the lowest alveolar ventilation rate

(Multiple Choice)

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Question 96

Newborn respiratory distress syndrome is caused by an excess of pulmonary surfactant.

(True/False)

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Question 97

The partial pressure of a gas in blood depends on the amount that is physically dissolved and not on the total content of the gas present in the blood.

(True/False)

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Question 98

____________________ is the transient cessation of breathing.

(Short Answer)

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Question 99

In the absence of pulmonary surfactant, smaller alveoli display a larger inward-directed pressure than do larger alveoli.

(True/False)

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Question 100

Showing 81 - 100 of 253

Match the effects on the rate of gas transfer, labelled a. through c., with the changes listed. (Options may be used more than once or not at all.) -the effect of tissue oedema on O₂ and CO₂ exchange between the surrounding cells and blood

Pulmonary surfactant contributes to lung stability by ____________________ the surface tension.

What is the last step that produces an inspiration

The most important factor controlling respiration is the PO₂ of arterial blood.

If the tidal volume is 500 mL and the anatomic dead space volume is 150 mL, only 350 mL of air enters the alveoli during inspiration.

Increased acidity at the tissue cells stimulates increased dissociation of oxyhaemoglobin.

Alveolar collapse may occur when pulmonary surfactant secretion drops.

The alveolar wall is [how many ] cell layer(s) thick.The wall of the pulmonary capillaries surrounding an alveolus is cell [how many ] layer(s) thick.

Systemic arterial PCO₂ is less than tissue PCO₂.

Describe the mechanics of ventilation.

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.) -maximum volume of air that the lungs can hold

Match the effects on the rate of gas transfer, labelled a. through c., with the changes listed. (Options may be used more than once or not at all.) -the effect of a fall in atmospheric PO₂ on O₂ exchange within the lungs

Which of the following does NOT happen during inspiration

Which of the following does NOT happen when the diaphragm contracts

At the systemic capillaries, the PO₂ is in the range of the steep portion of the O₂-Hb curve.

Which of these conditions would result in the lowest alveolar ventilation rate

Newborn respiratory distress syndrome is caused by an excess of pulmonary surfactant.

The partial pressure of a gas in blood depends on the amount that is physically dissolved and not on the total content of the gas present in the blood.

____________________ is the transient cessation of breathing.

In the absence of pulmonary surfactant, smaller alveoli display a larger inward-directed pressure than do larger alveoli.

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

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Exam 12: The Respiratory System

Match the effects on the rate of gas transfer, labelled a. through c., with the changes listed. (Options may be used more than once or not at all.) -the effect of tissue oedema on O₂ and CO₂ exchange between the surrounding cells and blood

Pulmonary surfactant contributes to lung stability by ____________________ the surface tension.

What is the last step that produces an inspiration

The most important factor controlling respiration is the PO₂ of arterial blood.

If the tidal volume is 500 mL and the anatomic dead space volume is 150 mL, only 350 mL of air enters the alveoli during inspiration.

Increased acidity at the tissue cells stimulates increased dissociation of oxyhaemoglobin.

Alveolar collapse may occur when pulmonary surfactant secretion drops.

The alveolar wall is ____________________ [how many ] cell layer(s) thick.The wall of the pulmonary capillaries surrounding an alveolus is ____________________ cell [how many ] layer(s) thick.

Systemic arterial PCO₂ is less than tissue PCO₂.

Describe the mechanics of ventilation.

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.) -maximum volume of air that the lungs can hold

Match the effects on the rate of gas transfer, labelled a. through c., with the changes listed. (Options may be used more than once or not at all.) -the effect of a fall in atmospheric PO₂ on O₂ exchange within the lungs

Which of the following does NOT happen during inspiration

Which of the following does NOT happen when the diaphragm contracts

At the systemic capillaries, the PO₂ is in the range of the steep portion of the O₂-Hb curve.

Which of these conditions would result in the lowest alveolar ventilation rate

Newborn respiratory distress syndrome is caused by an excess of pulmonary surfactant.

The partial pressure of a gas in blood depends on the amount that is physically dissolved and not on the total content of the gas present in the blood.

____________________ is the transient cessation of breathing.

In the absence of pulmonary surfactant, smaller alveoli display a larger inward-directed pressure than do larger alveoli.

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters

The alveolar wall is [how many ] cell layer(s) thick.The wall of the pulmonary capillaries surrounding an alveolus is cell [how many ] layer(s) thick.