Question 1

Erythrocytes do not carry out aerobic respiration; thus,they do not consume any of the oxygen they are transporting.

Accepted Answer

A) True 
 B)False

Question 2

Which two ligaments extend from the thyroid cartilage to the arytenoid cartilages?

Accepted Answer

A)  Vestibular and vocal
B)  Laryngeal and corniculate
C)  Corniculate and cricoid
D)  Cricoid and arytenoid
E)  Thyrohyoid and cricoidsF) C) and E)
G) D) and E)

Question 3

Your breathing rate is 12 breaths/minute; your tidal volume is 500 mL; your vital capacity is 4700 mL; and your dead air space is 150 mL.Your alveolar ventilation rate is __________ mL/min.

Accepted Answer

A)  2,400
B)  3,600
C)  4,200
D)  5,600
E)  6,400F) A) and C)
G) B) and D)

Question 4

During exercise,which of the following directly increases respiratory rate?

Accepted Answer

A)  Increased H+ level in the blood
B)  The Bohr effect
C)  Reduced blood pH
D)  Reduced oxyhemoglobin
E)  Anticipation of the needs of exercising muscleF) A) and B)
G) B) and E)

Question 5

The blood transports more CO2 in the form of ___________ than in any other form.

Accepted Answer

A)  carbaminohemoglobin
B)  carboxyhemoglobin
C)  bicarbonate ions
D)  dissolved CO2 gas
E)  bisphosphocarbonateF) D) and E)
G) A) and E)

Question 6

In one passage through a bed of systemic blood capillaries,the blood gives up about what percentage of its oxygen?

Accepted Answer

A)  5% to 10%
B)  10% to 15%
C)  20% to 25%
D)  30% to 40%
E)  70% to 85%F) B) and E)
G) A) and B)

Question 7

The respiratory system contains a total of five __________.

Accepted Answer

A)  segmental bronchi
B)  choanae
C)  laryngeal cartilages
D)  lobes
E)  tracheal cartilagesF) B) and E)
G) All of the above

Question 8

Emotional states are integrated by the __________,which generates an output that creates such respiratory variations as laughing and crying.

Accepted Answer

A)  VRG
B)  PRG
C)  DRG
D)  SRGE) A) and B)
F) A) and C)

Question 9

Which of the following would slow down gas exchange between the blood and alveolar air?

Accepted Answer

A)  An increase in membrane thickness
B)  An increase in alveolar surface area
C)  An increase in respiratory rate
D)  A decrease in membrane thickness
E)  A decrease in nitrogen solubilityF) All of the above
G) B) and E)

Question 10

Which malignancy originates in the lamina propria of the bronchi?

Accepted Answer

A)  Squamous-cell carcinoma
B)  Oat-cell carcinoma
C)  Adenocarcinoma
D)  Pulmonary edema
E)  Cor pulmonaleF) C) and D)
G) All of the above

Question 11

Scuba divers breathe a nitrogen-oxygen mixture rather than pure compressed oxygen in order to avoid what condition?

Accepted Answer

A)  The bends
B)  Oxygen toxicity
C)  Rapture of the deep
D)  Caisson disease
E)  Hypoxemic hypoxiaF) D) and E)
G) A) and B)

Question 12

Gas transport is the process of carrying gases from the alveoli to the systemic tissues and vice versa.

Accepted Answer

A) True 
 B)False

Question 13

Mucus plays an important role in cleansing inhaled air.It is produced by __________ of the respiratory tract.

Accepted Answer

A)  squamous alveolar cells
B)  great alveolar cells
C)  the pleurae
D)  ciliated cells
E)  goblet cellsF) All of the above
G) B) and C)

Question 14

Blood banks dispose of blood that has low levels of bisphosphoglycerate.What would be the probable reason for doing so?

Accepted Answer

A)  A low BPG level causes acidosis of blood.
B)  Erythrocytes low in BPG do not unload CO2 very well.
C)  Erythrocytes low in BPG do not unload O2 very well.
D)  Erythrocytes low in BPG do not load O2 very well.
E)  A decline in BPG level is accompanied by a decline in hemoglobin level.F) A) and C)
G) D) and E)

Question 15

Carbon dioxide is transported by all the following means except _________.

Accepted Answer

A)  carbaminohemoglobin
B)  carbonic acid
C)  carbonate
D)  bicarbonate ions
E)  dissolved gasF) All of the above
G) B) and C)

Question 16

The heart indents into the __________ of the left lung.

Accepted Answer

A)  oblique fissure
B)  hilum
C)  apex
D)  cardiac impression
E)  baseF) A) and D)
G) A) and C)

Question 17

Each hemoglobin molecule can transport up to __________ oxygen molecules.

Accepted Answer

A)  6
B)  2
C)  3
D)  4
E)  5F) D) and E)
G) A) and B)

Question 18

Respiratory arrest is an irreversible condition.

Accepted Answer

A) True 
 B)False

Question 19

In which condition are the lungs infected with Mycobacterium and produce fibrous nodules around the bacteria,leading to progressive pulmonary fibrosis?

Accepted Answer

A)  Pneumonia
B)  Dyspnea
C)  Pneumothorax
D)  Tuberculosis
E)  RhinitisF) B) and D)
G) C) and D)

Question 20

Breathing is controlled solely by the medulla oblongata and pons.

Accepted Answer

A) True 
 B)False

Exam 22: The Respiratory System

In which condition are the lungs infected with Mycobacterium and produce fibrous nodules around the bacteria,leading to progressive pulmonary fibrosis?

Correct AnswerverifiedShow Answer

Gas transport is the process of carrying gases from the alveoli to the systemic tissues and vice versa.

Correct AnswerverifiedShow Answer

Mucus plays an important role in cleansing inhaled air.It is produced by __________ of the respiratory tract.

Correct AnswerverifiedShow Answer

Emotional states are integrated by the __________,which generates an output that creates such respiratory variations as laughing and crying.

Correct AnswerverifiedShow Answer

Your breathing rate is 12 breaths/minute; your tidal volume is 500 mL; your vital capacity is 4700 mL; and your dead air space is 150 mL.Your alveolar ventilation rate is __________ mL/min.

Correct AnswerverifiedShow Answer

In one passage through a bed of systemic blood capillaries,the blood gives up about what percentage of its oxygen?

Correct AnswerverifiedShow Answer

Scuba divers breathe a nitrogen-oxygen mixture rather than pure compressed oxygen in order to avoid what condition?

Correct AnswerverifiedShow Answer

During exercise,which of the following directly increases respiratory rate?

Correct AnswerverifiedShow Answer

Erythrocytes do not carry out aerobic respiration; thus,they do not consume any of the oxygen they are transporting.

Correct AnswerverifiedShow Answer

Which of the following would slow down gas exchange between the blood and alveolar air?

Correct AnswerverifiedShow Answer

Which two ligaments extend from the thyroid cartilage to the arytenoid cartilages?

Correct AnswerverifiedShow Answer

The heart indents into the __________ of the left lung.

Correct AnswerverifiedShow Answer

Respiratory arrest is an irreversible condition.

Correct AnswerverifiedShow Answer

Breathing is controlled solely by the medulla oblongata and pons.

Correct AnswerverifiedShow Answer

Each hemoglobin molecule can transport up to __________ oxygen molecules.

Correct AnswerverifiedShow Answer

Carbon dioxide is transported by all the following means except _________.

Correct AnswerverifiedShow Answer

The respiratory system contains a total of five __________.

Correct AnswerverifiedShow Answer

Blood banks dispose of blood that has low levels of bisphosphoglycerate.What would be the probable reason for doing so?

Correct AnswerverifiedShow Answer

Which malignancy originates in the lamina propria of the bronchi?

Correct AnswerverifiedShow Answer

The blood transports more CO2 in the form of ___________ than in any other form.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The blood transports more CO₂ in the form of ___________ than in any other form.

Correct Answer
verified