Question 1

____________________ is the transient cessation of breathing.

Accepted Answer

Apnea

Question 2

As the resistance of the air passages increases, the airflow through them ____________________ if the pressure gradient remains constant.

Accepted Answer

decreases

Question 3

____________________ refers to air flow between adjacent alveoli through the pores of Kohn.

Accepted Answer

Collateral ventilation

Question 4

The exchange of O2 and CO2 between the external environment and tissue cells is known as ____________________.

Accepted Answer

external r

Question 5

Which of these conditions applies to alveolar PO2 at high altitudes?

Accepted Answer

A) PO2 is higher than normal. 
B) PO2 is lower than normal. 
C)  PCO2 is higher than normal. 
D)  PCO2 is lower than normal. 
A) PO2 is higher than normal. 
B) PO2 is lower than normal. 
C)  PCO2 is higher than normal. 
D)  PCO2 is lower than normal.

Question 6

Which of these actions brings on normal expirations?

Accepted Answer

A) contraction of the external intercostals 
B) contraction of the internal intercostals 
C)  contraction of the diaphragm 
D)  elastic recoil of stretched lung tissues and relaxation of inspiratory muscles 
A) contraction of the external intercostals 
B) contraction of the internal intercostals 
C)  contraction of the diaphragm 
D)  elastic recoil of stretched lung tissues and relaxation of inspiratory muscles

Question 7

During which of the following would intrapleural pressure be greater than atmospheric pressure?

Accepted Answer

A) forced inspiration 
B) passive expiration 
C)  forced expiration 
D)  pneumothorax 
A) forced inspiration 
B) passive expiration 
C)  forced expiration 
D)  pneumothorax

Question 8

The pleural cavity normally is not in direct communication with the lungs or atmosphere.

Accepted Answer

A) True 
 B)False

Question 9

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.)
a.anaemic hypoxia
b.circulatory hypoxia
c.histotoxic hypoxia
d.hypoxic hypoxia
-carbon monoxide poisoning

Accepted Answer

The answer of Match the types of hypoxia, labelled a....

Question 10

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.)
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.
-the effect of tissue oedema on O2 and CO2 exchange between the surrounding cells and blood

Accepted Answer

Question 11

Which of the following does NOT occur during expiration when a person is breathing quietly?

Accepted Answer

A) The size of the thoracic cavity is reduced. 
B) The intra-alveolar pressure becomes greater than the atmospheric pressure. 
C)  Air flows out of the lungs. 
D)  The expiratory muscles contract. 
A) The size of the thoracic cavity is reduced. 
B) The intra-alveolar pressure becomes greater than the atmospheric pressure. 
C)  Air flows out of the lungs. 
D)  The expiratory muscles contract.

Question 12

The primary factor believed to be responsible for stimulating the profound and abrupt increase in ventilation during exercise is increased arterial PCO2.

Accepted Answer

A) True 
 B)False

Question 13

According to ____________________ law, at any constant temperature, the pressure of a gas varies inversely with the volume of the gas.

Accepted Answer

The answer of According to ____________________ law, at any constant...

Question 14

In the plateau region of the O2-Hb curve, a large decrease in PO2 results in a small decrease in Hb saturation, whereas in the steep portion of the curve, a small decrease in PO2 results in a large decrease in percent Hb saturation.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following does NOT happen when the diaphragm contracts?

Accepted Answer

A) The volume of the thoracic cavity increases. 
B) Lung volume increases as the lungs are forced to expand. 
C)  The intra-alveolar pressure increases. 
D)  The intrathoracic pressure decreases. 
A) The volume of the thoracic cavity increases. 
B) Lung volume increases as the lungs are forced to expand. 
C)  The intra-alveolar pressure increases. 
D)  The intrathoracic pressure decreases.

Question 16

Administering O2 to patients with severe chronic lung disease will not depress their drive to breathe.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

respirator

Question 18

What does pulmonary compliance refer to specifically?

Accepted Answer

A) effort required to stretch the lungs 
B) elasticity of the lung tissue 
C)  energy requirements for an inspiration 
D)  surface area of the alveoli 
A) effort required to stretch the lungs 
B) elasticity of the lung tissue 
C)  energy requirements for an inspiration 
D)  surface area of the alveoli

Question 19

Pulmonary surfactant is secreted by Type II alveolar cells.

Accepted Answer

A) True 
 B)False

Question 20

If the pulmonary ventilation rate is 3200 mL/minute, with a tidal volume of 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

____________________ is the transient cessation of breathing.

As the resistance of the air passages increases, the airflow through them ____________________ if the pressure gradient remains constant.

____________________ refers to air flow between adjacent alveoli through the pores of Kohn.

The exchange of O₂ and CO₂ between the external environment and tissue cells is known as ____________________.

Which of these conditions applies to alveolar P_O2 at high altitudes?

Which of these actions brings on normal expirations?

During which of the following would intrapleural pressure be greater than atmospheric pressure?

The pleural cavity normally is not in direct communication with the lungs or atmosphere.

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.) a.anaemic hypoxia b.circulatory hypoxia c.histotoxic hypoxia d.hypoxic hypoxia -carbon monoxide poisoning

Which of the following does NOT occur during expiration when a person is breathing quietly?

The primary factor believed to be responsible for stimulating the profound and abrupt increase in ventilation during exercise is increased arterial P_CO2.

According to ____________________ law, at any constant temperature, the pressure of a gas varies inversely with the volume of the gas.

In the plateau region of the O₂-Hb curve, a large decrease in P_O2 results in a small decrease in Hb saturation, whereas in the steep portion of the curve, a small decrease in P_O2 results in a large decrease in percent Hb saturation.

Which of the following does NOT happen when the diaphragm contracts?

Administering O₂ to patients with severe chronic lung disease will not depress their drive to breathe.

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

What does pulmonary compliance refer to specifically?

Pulmonary surfactant is secreted by Type II alveolar cells.

If the pulmonary ventilation rate is 3200 mL/minute, with a tidal volume of 400, what is the respiratory rate per minute?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Exam 11: The Blood

____________________ is the transient cessation of breathing.

As the resistance of the air passages increases, the airflow through them ____________________ if the pressure gradient remains constant.

____________________ refers to air flow between adjacent alveoli through the pores of Kohn.

The exchange of O2 and CO2 between the external environment and tissue cells is known as ____________________.

Which of these conditions applies to alveolar PO2 at high altitudes?

Which of these actions brings on normal expirations?

During which of the following would intrapleural pressure be greater than atmospheric pressure?

The pleural cavity normally is not in direct communication with the lungs or atmosphere.

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.) a.anaemic hypoxia b.circulatory hypoxia c.histotoxic hypoxia d.hypoxic hypoxia -carbon monoxide poisoning

Which of the following does NOT occur during expiration when a person is breathing quietly?

The primary factor believed to be responsible for stimulating the profound and abrupt increase in ventilation during exercise is increased arterial PCO2.

According to ____________________ law, at any constant temperature, the pressure of a gas varies inversely with the volume of the gas.

In the plateau region of the O2-Hb curve, a large decrease in PO2 results in a small decrease in Hb saturation, whereas in the steep portion of the curve, a small decrease in PO2 results in a large decrease in percent Hb saturation.

Which of the following does NOT happen when the diaphragm contracts?

Administering O2 to patients with severe chronic lung disease will not depress their drive to breathe.

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

What does pulmonary compliance refer to specifically?

Pulmonary surfactant is secreted by Type II alveolar cells.

If the pulmonary ventilation rate is 3200 mL/minute, with a tidal volume of 400, what is the respiratory rate per minute?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

The exchange of O₂ and CO₂ between the external environment and tissue cells is known as ____________________.

Which of these conditions applies to alveolar P_O2 at high altitudes?

The primary factor believed to be responsible for stimulating the profound and abrupt increase in ventilation during exercise is increased arterial P_CO2.

In the plateau region of the O₂-Hb curve, a large decrease in P_O2 results in a small decrease in Hb saturation, whereas in the steep portion of the curve, a small decrease in P_O2 results in a large decrease in percent Hb saturation.

Administering O₂ to patients with severe chronic lung disease will not depress their drive to breathe.

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