Question 1

Exhaled air passes from the larynx through the trachea.

Accepted Answer

A) True 
 B)False

Question 2

Complete each of the following statments.
____________________ refers to a ventilation rate that exceeds the metabolic needs of the body.

Accepted Answer

The answer of Complete each of the following statments.
____________________ refers...

Question 3

Complete each of the following statments.
____________________ is a respiratory disease characterized by collapse of the smaller airways and a breakdown of alveolar walls.

Accepted Answer

The answer of Complete each of the following statments.
____________________ is...

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

Pulmonary surfactant decreases surface tension to a greater degree in large alveoli than in small alveoli.

Accepted Answer

A) True 
 B)False

Question 6

Boyle's law states that the pressure exerted by a gas varies directly with the volume of the gas.

Accepted Answer

A) True 
 B)False

Question 7

During external respiration, the $\mathrm { P } _ { \mathrm { Co } _ { 2 } }$ is greater in the blood of the pulmonary capillaries than in the alveoli.

Accepted Answer

A) True 
 B)False

Question 8

The abdominal muscles are expiratory muscles.

Accepted Answer

A) True 
 B)False

Question 9

O2 is much more soluble in blood than CO2 is.

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

Complete each of the following statments.
The maximum volume of air that can be moved in and out of the lungs in a single breath is known as the ____________________.

Accepted Answer

The answer of Complete each of the following statments.
The maximum...

Question 12

The residual volume is the amount of air remaining in the lungs at the end of a normal expiration.

Accepted Answer

A) True 
 B)False

Question 13

If a person is breathing rapidly, it is safe to assume that he or she is getting adequate ventilation.

Accepted Answer

A) True 
 B)False

Question 14

Expiratory neurons

Accepted Answer

A)  are found in both the DRG and VRG 
B)  send impulses to the expiratory muscles during normal quiet breathing 
C)  are stimulated by the phrenic nerve 
D)  are stimulated by the apneustic area 
E)  none of these 
A)  are found in both the DRG and VRG 
B)  send impulses to the expiratory muscles during normal quiet breathing 
C)  are stimulated by the phrenic nerve 
D)  are stimulated by the apneustic area 
E)  none of these

Question 15

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

Accepted Answer

respirator

Question 16

Select the factor in the arterial blood that has the largest effect on increasing the rate of respiration.

Accepted Answer

A)  increase in the hydrogen ion concentration in the kidneys 
B)  increase in the hydrogen ion concentration in the arterial blood 
C)  any decrease in the partial pressure of carbon dioxide 
D)  any decrease in oxygen's partial pressure 
E)  detection of CO2 by central chemoreceptors 
A)  increase in the hydrogen ion concentration in the kidneys 
B)  increase in the hydrogen ion concentration in the arterial blood 
C)  any decrease in the partial pressure of carbon dioxide 
D)  any decrease in oxygen's partial pressure 
E)  detection of CO2 by central chemoreceptors

Question 17

Complete each of the following statments.
Pulmonary surfactant contributes to lung stability by ____________________ surface tension.

Accepted Answer

The answer of Complete each of the following statments.
Pulmonary surfactant...

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

Which factor would reduce the alveolar ventilation rate the most?

Accepted Answer

A)  increased alveolar dead space 
B)  decreased alveolar dead space 
C)  increased respiratory rate 
D)  increased tidal volume 
E)  quiet breathing 
A)  increased alveolar dead space 
B)  decreased alveolar dead space 
C)  increased respiratory rate 
D)  increased tidal volume 
E)  quiet breathing

Question 20

A pneumothorax allows intrapleural pressure to equilibrate with atmospheric pressure.

Accepted Answer

A) True 
 B)False

Exam 13: A--The Respiratory System

Exhaled air passes from the larynx through the trachea.

Complete each of the following statments. ____________________ refers to a ventilation rate that exceeds the metabolic needs of the body.

Complete each of the following statments. ____________________ is a respiratory disease characterized by collapse of the smaller airways and a breakdown of alveolar walls.

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

Pulmonary surfactant decreases surface tension to a greater degree in large alveoli than in small alveoli.

Boyle's law states that the pressure exerted by a gas varies directly with the volume of the gas.

During external respiration, the PCo2\mathrm { P } _ { \mathrm { Co } _ { 2 } }PCo2​​ is greater in the blood of the pulmonary capillaries than in the alveoli.

The abdominal muscles are expiratory muscles.

O2 is much more soluble in blood than CO2 is.

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

Complete each of the following statments. The maximum volume of air that can be moved in and out of the lungs in a single breath is known as the ____________________.

The residual volume is the amount of air remaining in the lungs at the end of a normal expiration.

If a person is breathing rapidly, it is safe to assume that he or she is getting adequate ventilation.

Expiratory neurons

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

Select the factor in the arterial blood that has the largest effect on increasing the rate of respiration.

Complete each of the following statments. Pulmonary surfactant contributes to lung stability by ____________________ surface tension.

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

Which factor would reduce the alveolar ventilation rate the most?

A pneumothorax allows intrapleural pressure to equilibrate with atmospheric pressure.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters

During external respiration, the $\mathrm { P } _ { \mathrm { Co } _ { 2 } }$ is greater in the blood of the pulmonary capillaries than in the alveoli.

O₂ is much more soluble in blood than CO₂ is.

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