Question 1

If a student inhales as deeply as possible and then blows the air out until he cannot exhale any more, the amount of air that he expelled is his

Accepted Answer

A)  tidal volume. 
B)  inspiratory reserve volume. 
C)  expiratory reserve volume. 
D)  minimal volume. 
E)  vital capacity.

Question 2

List the muscles of inspiration and expiration.

Accepted Answer

The answer of List the muscles of inspiration and expiration....

Question 3

During the winter, Brad sleeps in a dorm room that lacks a humidifier for the heated air.In the mornings he notices that his nose is "stuffy," similar to when he has a cold, but after showering and drinking some water, the stuffiness disappears until the next morning.What might be the cause of Brad's nasal condition?

Accepted Answer

The answer of During the winter, Brad sleeps in a...

Question 4

A typical residual volume (in milliliters)for a healthy, 70 kg male is ________.

Accepted Answer

The answer of A typical residual volume (in milliliters)for a...

Question 5

Summarize the four gas laws.

Accepted Answer

The answer of Summarize the four gas laws....

Question 6

The common passageway shared by the respiratory and digestive systems is the

Accepted Answer

A)  larynx. 
B)  glottis. 
C)  vestibule. 
D)  pharynx. 
E)  esophagus.

Question 7

Air moves into the lungs because

Accepted Answer

A)  the gas pressure in the lungs is less than outside pressure. 
B)  the volume of the lungs decreases with inspiration. 
C)  the thorax is muscular. 
D)  contraction of the diaphragm decreases the volume of the pleural cavity. 
E)  All of the answers are correct.

Question 8

Type I alveolar cells

Accepted Answer

A)  allow rapid diffusion of gases through their thin membranes. 
B)  secrete a chemical known as surfactant. 
C)  are phagocytic. 
D)  allow rapid diffusion of gases through their thin membranes, secrete a chemical known as surfactant, and are phagocytic. 
E)  None of the statements are True.

Question 9

Some have a congenital alpha-1 antitrypsin deficiency.If the job of alpha-1 antitrypsin is to inhibit trypsin and elastase, what condition are people with this genetic deficiency likely to develop?

Accepted Answer

The answer of Some have a congenital alpha-1 antitrypsin deficiency.If...

Question 10

List and describe the lung volumes.

Accepted Answer

The answer of List and describe the lung volumes....

Question 11

Julia is breathing 14 times per minute, with a tidal volume of 520 mL and a dead space of 152 mL.Lyle is breathing 15 times per minute, with a tidal volume of 400 mL and a dead space of 175 mL.Which patient has better alveolar ventilation?

Accepted Answer

The answer of Julia is breathing 14 times per minute,...

Question 12

Match the lung volume with its description.
-the extra amount actively (forcibly)exhaled after a normal exhalation

Accepted Answer

A) tidal volume 
B) inspiratory reserve volume 
C) expiratory reserve volume 
D) residual volume

Question 13

What are the functions of pleural fluid?

Accepted Answer

The answer of What are the functions of pleural fluid?...

Question 14

Air moves out of the lungs because

Accepted Answer

A)  the gas pressure in the lungs is less than outside pressure. 
B)  the volume of the lungs decreases with expiration. 
C)  the thorax is muscular. 
D)  contraction of the diaphragm increases the volume of the pleural cavity. 
E)  All of the answers are correct.

Question 15

The respiratory rate times the tidal volume corrected for dead space is the

Accepted Answer

A)  vital capacity. 
B)  respiratory minute volume. 
C)  pulmonary ventilation rate. 
D)  alveolar ventilation rate. 
E)  external respiration rate.

Question 16

Which single muscle contributes most to normal, resting inspiration?

Accepted Answer

The answer of Which single muscle contributes most to normal,...

Question 17

An increase in the rate and depth of breathing is known as ________.

Accepted Answer

The answer of An increase in the rate and depth...

Question 18

The volume of air moved in a single respiration is called the ________.

Accepted Answer

The answer of The volume of air moved in a...

Question 19

When the inspiratory muscles relax, the rib cage returns to its original position as a result of ________.

Accepted Answer

The answer of When the inspiratory muscles relax, the rib...

Question 20

The larynx contains the ________, connective tissue bands that tighten and vibrate to create sound when air moves past them.

Accepted Answer

The answer of The larynx contains the ________, connective tissue...

Exam 17: Mechanics of Breathing