Question 1

If the pulmonary ventilation rate is 3200 mL/minute, and tidal volume is 400, what is the respiratory rate per minute

Accepted Answer

A) 2.8 breaths per minute 
B) 8 breaths per minute 
C) 12.5 breaths per minute 
D) 16 breaths per minute 
A) 2.8 breaths per minute 
B) 8 breaths per minute 
C) 12.5 breaths per minute 
D) 16 breaths per minute

Question 2

A person has a tidal volume of 400 mL, a respiratory rate of 14 breaths per minute, and an anatomic dead space volume of 150 mL.What is his alveolar ventilation rate

Accepted Answer

A) 3500 mL/minute 
B) 3920 mL/minute 
C) 5450 mL/minute 
D) 7700 mL/minute 
A) 3500 mL/minute 
B) 3920 mL/minute 
C) 5450 mL/minute 
D) 7700 mL/minute

Question 3

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.)
-haemoglobin deficiency

Accepted Answer

A) anaemic hypoxia 
B) circulatory hypoxia 
C) histotoxic hypoxia 
D) hypoxic hypoxia 
A) anaemic hypoxia 
B) circulatory hypoxia 
C) histotoxic hypoxia 
D) hypoxic hypoxia

Question 4

Approximately what percentage of carbon dioxide is transported in the blood in dissolved form

Accepted Answer

A) 1.5 percent 
B) 10 percent 
C) 35 percent 
D) 60 percent 
A) 1.5 percent 
B) 10 percent 
C) 35 percent 
D) 60 percent

Question 5

The peripheral chemoreceptors are not activated during carbon monoxide poisoning despite the fact that the total O₂ content in the blood can become lethally low.

Accepted Answer

A) True 
 B)False

Question 6

Stimulation of the sympathetic nervous system and release of epinephrine lead to an increase in airway resistance.

Accepted Answer

A) True 
 B)False

Question 7

Which of these statements describes intrapulmonary pressure

Accepted Answer

A) It is the pressure within the air sacs of the lung. 
B) It is always greater than atmospheric pressure. 
C) It is always less than intrapleural pressure. 
D) It is the pressure within the bronchi. 
A) It is the pressure within the air sacs of the lung. 
B) It is always greater than atmospheric pressure. 
C) It is always less than intrapleural pressure. 
D) It is the pressure within the bronchi.

Question 8

The ____________________ pressure is the pressure exerted by the weight of the air in the atmosphere.

Accepted Answer

The answer of The ____________________ pressure is the pressure exerted...

Question 9

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 on O₂ exchange in the lungs by replacing part of the nitrogen with helium so that the inspired air consists of 60 percent N, 19 percent He, and 21 percent O₂

Accepted Answer

A) This change would increase the rate of gas transfer. 
B) This change would decrease the rate of gas transfer. 
C) This change would have no effect on the rate of gas transfer. 
A) This change would increase the rate of gas transfer. 
B) This change would decrease the rate of gas transfer. 
C) This change would have no effect on the rate of gas transfer.

Question 10

The pneumotaxic and apneustic centres are located in the cerebellum.

Accepted Answer

A) True 
 B)False

Question 11

For which of these gases does haemoglobin have the greatest affinity

Accepted Answer

A) carbon dioxide 
B) oxygen 
C) carbon monoxide 
D) nitrogen 
A) carbon dioxide 
B) oxygen 
C) carbon monoxide 
D) nitrogen

Question 12

Which of these statements does NOT describe haemoglobin

Accepted Answer

A) Its presence keeps the blood PO₂ low and favours O₂ movement into the blood. 
B) It can combine with O₂, CO₂, H⁺, and CO. 
C) It unloads less O₂ in the presence of increased tissue acidity. 
D) It unloads more O₂ when body temperature is higher. 
A) Its presence keeps the blood PO₂ low and favours O₂ movement into the blood. 
B) It can combine with O₂, CO₂, H⁺, and CO. 
C) It unloads less O₂ in the presence of increased tissue acidity. 
D) It unloads more O₂ when body temperature is higher.

Question 13

The 500 mL of air that is inspired is the same 500 mL of air that enters the alveoli during a single breath.

Accepted Answer

A) True 
 B)False

Question 14

The respiratory centre is located in the cerebral cortex.

Accepted Answer

A) True 
 B)False

Question 15

What is the location of the receptors that are stimulated by a large drop in the blood PO₂ level

Accepted Answer

A) respiratory centre of the brain 
B) arterioles 
C) tissue capillaries 
D) carotid and aortic bodies 
A) respiratory centre of the brain 
B) arterioles 
C) tissue capillaries 
D) carotid and aortic bodies

Question 16

The ____________________ serve as the conducting portion of the respiratory system, and the ____________________ are the gas-exchanging portion.

Accepted Answer

respirator

Question 17

A molecule of nitrogen gas exerts more pressure than a molecule of oxygen gas because nitrogen gas is a larger molecule.

Accepted Answer

A) True 
 B)False

Question 18

To produce a normal tidal volume, the expiratory muscles must be stimulated.

Accepted Answer

A) True 
 B)False

Question 19

Arterial PO₂ remains normal or may even increase slightly during exercise, despite the fact that O₂ consumption by the tissues is greatly increased.

Accepted Answer

A) True 
 B)False

Question 20

When it relaxes, the diaphragm resumes an elevated, ____________________-shaped position.

Accepted Answer

The answer of When it relaxes, the diaphragm resumes an...

If the pulmonary ventilation rate is 3200 mL/minute, and tidal volume is 400, what is the respiratory rate per minute

A person has a tidal volume of 400 mL, a respiratory rate of 14 breaths per minute, and an anatomic dead space volume of 150 mL.What is his alveolar ventilation rate

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.) -haemoglobin deficiency

Approximately what percentage of carbon dioxide is transported in the blood in dissolved form

The peripheral chemoreceptors are not activated during carbon monoxide poisoning despite the fact that the total O₂ content in the blood can become lethally low.

Stimulation of the sympathetic nervous system and release of epinephrine lead to an increase in airway resistance.

Which of these statements describes intrapulmonary pressure

The ____________________ pressure is the pressure exerted by the weight of the air in the atmosphere.

The pneumotaxic and apneustic centres are located in the cerebellum.

For which of these gases does haemoglobin have the greatest affinity

Which of these statements does NOT describe haemoglobin

The 500 mL of air that is inspired is the same 500 mL of air that enters the alveoli during a single breath.

The respiratory centre is located in the cerebral cortex.

What is the location of the receptors that are stimulated by a large drop in the blood PO₂ level

The serve as the conducting portion of the respiratory system, and the are the gas-exchanging portion.

A molecule of nitrogen gas exerts more pressure than a molecule of oxygen gas because nitrogen gas is a larger molecule.

To produce a normal tidal volume, the expiratory muscles must be stimulated.

Arterial PO₂ remains normal or may even increase slightly during exercise, despite the fact that O₂ consumption by the tissues is greatly increased.

When it relaxes, the diaphragm resumes an elevated, ____________________-shaped position.

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

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Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

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Exam 12: The Respiratory System

If the pulmonary ventilation rate is 3200 mL/minute, and tidal volume is 400, what is the respiratory rate per minute

A person has a tidal volume of 400 mL, a respiratory rate of 14 breaths per minute, and an anatomic dead space volume of 150 mL.What is his alveolar ventilation rate

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.) -haemoglobin deficiency

Approximately what percentage of carbon dioxide is transported in the blood in dissolved form

The peripheral chemoreceptors are not activated during carbon monoxide poisoning despite the fact that the total O₂ content in the blood can become lethally low.

Stimulation of the sympathetic nervous system and release of epinephrine lead to an increase in airway resistance.

Which of these statements describes intrapulmonary pressure

The ____________________ pressure is the pressure exerted by the weight of the air in the atmosphere.

The pneumotaxic and apneustic centres are located in the cerebellum.

For which of these gases does haemoglobin have the greatest affinity

Which of these statements does NOT describe haemoglobin

The 500 mL of air that is inspired is the same 500 mL of air that enters the alveoli during a single breath.

The respiratory centre is located in the cerebral cortex.

What is the location of the receptors that are stimulated by a large drop in the blood PO₂ level

The ____________________ serve as the conducting portion of the respiratory system, and the ____________________ are the gas-exchanging portion.

A molecule of nitrogen gas exerts more pressure than a molecule of oxygen gas because nitrogen gas is a larger molecule.

To produce a normal tidal volume, the expiratory muscles must be stimulated.

Arterial PO₂ remains normal or may even increase slightly during exercise, despite the fact that O₂ consumption by the tissues is greatly increased.

When it relaxes, the diaphragm resumes an elevated, ____________________-shaped position.

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 serve as the conducting portion of the respiratory system, and the are the gas-exchanging portion.