Question 1

What type of tissue forms the walls of the alveoli?

Accepted Answer

A)   Pseudostratified ciliated columnar epithelium
B)   Simple squamous epithelium
C)   Stratified squamous epithelium
D)   Loose connective tissueE) B) and C)
F) A) and C)

Question 2

The air around us is about __________% oxygen.

Accepted Answer

The answer of The air around us is about __________%...

Question 3

The condition in which outside air enters the pleural cavity is called __________.

Accepted Answer

A)   pneumonia
B)   pneumothorax
C)   internal respiration
D)   emphysemaE) A) and B)
F) B) and D)

Question 4

During normal quiet inspiration, the contraction of the __________ causes air to move into the lungs.

Accepted Answer

A)   diaphragm
B)   internal intercostal muscles
C)   abdominal wall muscles
D)   sternocleidomastoidE) A) and B)
F) A) and C)

Question 5

Brad suffers from anxiety attacks during which he hyperventilates and occasionally passes out. Why would he faint?

Accepted Answer

A)   Elevated blood P CO2 causes vasodilation of cerebral arterioles, leading to enhanced blood supply to areas of the brain.
B)   Decreased blood P CO2 causes vasoconstriction of cerebral arterioles, leading to reduced blood supply to areas of the brain.
C)   Increased P O2 of blood causes vasoconstriction of cerebral arterioles, leading to reduced blood supply to areas of the brain.
D)   Decreased P O2 of blood causes vasodilation of cerebral arterioles, leading to enhanced blood supply to areas of the brain.E) A) and B)
F) A) and C)

Question 6

What reaction occurs in the pulmonary capillaries?

Accepted Answer

A)   H + + HCO 3 - → H 2CO 3 → CO 2 + H 2O
B)   CO 2 + H 2O → H 2CO 3 → H + + HCO 3 -  
C)   H + + HCO 3 - → CO 2 + H 2O → H 2CO 3
D)   H 2CO 3 → H + + HCO 3 - → CO 2 + H 2OE) A) and C)
F) All of the above

Question 7

What typically causes the condition in newborns called respiratory distress syndrome?

Accepted Answer

A)   Lack of surfactant
B)   Low oxygen concentration in the inspired air
C)   High oxygen concentration in the inspired air
D)   Thick mucus clogging theairwaysE) A) and B)
F) A) and C)

Question 8

What factor will cause an increase in breathing rate?

Accepted Answer

A)   Decrease in blood P CO2
B)   Increase in blood P CO2
C)   Increase in blood pH
D)   Increase in blood P O2E) All of the above
F) C) and D)

Question 9

What structure(s)  is/are not part of the anatomical dead space?

Accepted Answer

A)   Larynx
B)   Trachea
C)   Alveoli
D)   BronchiE) A) and B)
F) B) and C)

Question 10

Which respiratory pattern will increase the amount of fresh air entering the alveoli?

Accepted Answer

A)   Slow, deep respirations
B)   Rapid, shallow respirationsC) A) and B)
D) undefined

Question 11

Which of the following adheres the visceral and parietal pleural membranes together?

Accepted Answer

A)   Loose connective tissue
B)   Serous fluid in the pleural cavity
C)   Surfactant in the pleural cavity
D)   Elastic connective tissueE) A) and B)
F) B) and C)

Question 12

The pectoralis minor and the sternocleidomastoid muscles are used during forced expiration.

Accepted Answer

A) True 
 B)False

Question 13

What term describes the amount of air that enters or leaves the lungs during a respiratory cycle?

Accepted Answer

A)   Tidal volume
B)   Residual volume
C)   Vital capacity
D)   Total lung capacity
E)   Expiratory reserve volumeF) A) and D)
G) A) and C)

Question 14

The organs of the upper respiratory tract are located outside the thorax.

Accepted Answer

A) True 
 B)False

Question 15

The maximum amount of air a person can exhale after taking the deepest breath possible is a measurement of that person'svital capacity.

Accepted Answer

A) True 
 B)False

Question 16

Which muscle(s)  is/are used during forceful expiration?

Accepted Answer

A)   Diaphragm
B)   External intercostals
C)   Abdominal wall muscles
D)   SternocleidomastoidsE) B) and C)
F) A) and D)

Question 17

Cathy has been diagnosed with emphysema, a condition associated with destruction of alveolar walls. What effect would this anatomical change have on Cathy's respiratory function?

Accepted Answer

A)   Decreased rate of gas exchange
B)   Decreased ability to expand lungs and inspire
C)   Increased tendency for alveolar collapse
D)   Decreased movement of air into alveoli due to constriction of airwaysE) B) and C)
F) B) and D)

Question 18

How is carbon dioxide transported in the blood?

Accepted Answer

A)   1-2% dissolved in plasma; 24% as carbaminohemoglobin; 75% as bicarbonate ion
B)   1-2% dissolved in plasma; 70% as carbaminohemoglobin; 28% as bicarbonate ion
C)   7% dissolved in plasma; 23% as carbaminohemoglobin; 70% as bicarbonate ion
D)   23% dissolved in plasma; 70% as carbaminohemoglobin; 7% as bicarbonate ionE) B) and C)
F) A) and B)

Question 19

The layer of serous membrane that is firmly attached to the surface of a lung is called the __________ pleura.

Accepted Answer

The answer of The layer of serous membrane that is...

Question 20

An excessive increase in the rate and depth of breathing, resulting in a drop in P CO2 below normal levels, is called __________.

Accepted Answer

Exam 16: Respiratory System

Cathy has been diagnosed with emphysema, a condition associated with destruction of alveolar walls. What effect would this anatomical change have on Cathy's respiratory function?

Correct AnswerverifiedShow Answer

During normal quiet inspiration, the contraction of the __________ causes air to move into the lungs.

Correct AnswerverifiedShow Answer

What factor will cause an increase in breathing rate?

Correct AnswerverifiedShow Answer

The condition in which outside air enters the pleural cavity is called __________.

Correct AnswerverifiedShow Answer

An excessive increase in the rate and depth of breathing, resulting in a drop in P CO2 below normal levels, is called __________.

Correct AnswerverifiedShow Answer

The pectoralis minor and the sternocleidomastoid muscles are used during forced expiration.

Correct AnswerverifiedShow Answer

What reaction occurs in the pulmonary capillaries?

Correct AnswerverifiedShow Answer

How is carbon dioxide transported in the blood?

Correct AnswerverifiedShow Answer

Which of the following adheres the visceral and parietal pleural membranes together?

Correct AnswerverifiedShow Answer

Brad suffers from anxiety attacks during which he hyperventilates and occasionally passes out. Why would he faint?

Correct AnswerverifiedShow Answer

The organs of the upper respiratory tract are located outside the thorax.

Correct AnswerverifiedShow Answer

The maximum amount of air a person can exhale after taking the deepest breath possible is a measurement of that person'svital capacity.

Correct AnswerverifiedShow Answer

What structure(s) is/are not part of the anatomical dead space?

Correct AnswerverifiedShow Answer

The layer of serous membrane that is firmly attached to the surface of a lung is called the __________ pleura.

Correct AnswerverifiedShow Answer

What typically causes the condition in newborns called respiratory distress syndrome?

Correct AnswerverifiedShow Answer

What term describes the amount of air that enters or leaves the lungs during a respiratory cycle?

Correct AnswerverifiedShow Answer

The air around us is about __________% oxygen.

Correct AnswerverifiedShow Answer

Which respiratory pattern will increase the amount of fresh air entering the alveoli?

Correct AnswerverifiedShow Answer

What type of tissue forms the walls of the alveoli?

Correct AnswerverifiedShow Answer

Which muscle(s) is/are used during forceful expiration?

Correct AnswerverifiedShow Answer

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An excessive increase in the rate and depth of breathing, resulting in a drop in P _CO2below normal levels, is called __________.

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