Question 1

Phagocytic cells of the alveolus are the

Accepted Answer

A)   alveolar type II cells.
B)   alveolar type I cells.
C)   alveolar macrophages.
D)   septal cells.
E)   squamous alveolar cells.F) A) and B)
G) A) and C)

Question 2

Which statement accurately describes alveolar exchange of oxygen?

Accepted Answer

A)   Oxygen diffuses from the alveolus to the blood because the alveolus has a higher partial pressure of oxygen.
B)   Oxygen diffuses from the alveolus to the blood because the alveolus has a lower partial pressure of oxygen.
C)   Oxygen diffuses from the blood to the alveolus because the alveolus has a higher partial pressure of oxygen.
D)   Oxygen diffuses from the blood to the alveolus because the alveolus has a lower partial pressure of oxygen.E) C) and D)
F) A) and C)

Question 3

Control of pulmonary ventilation. 
-In this sagittal section showing the upper respiratory tract, what structure does number 4 indicate?

Accepted Answer

A)   Uvula
B)   Soft palate
C)   Hard palate
D)   Nasal concha
E)   EpiglottisF) B) and E)
G) B) and D)

Question 4

The amount of air left in the lungs even after the most forceful expiration is referred to as the ________ volume.

Accepted Answer

The answer of The amount of air left in the...

Question 5

The most common cell making up the alveolar wall is the

Accepted Answer

A)   alveolar type II cell.
B)   alveolar type I cell.
C)   alveolar macrophage.
D)   dust cell.
E)   septal cell.F) B) and C)
G) A) and E)

Question 6

What connects the pharynx to the trachea?

Accepted Answer

A)   Esophagus
B)   Bronchi
C)   Alveolar ducts
D)   Larynx
E)   Nasal cavityF) A) and E)
G) A) and D)

Question 7

An actively contracting muscle will cause local temperature to rise and will produce acidic molecules. Warmth and lower pH cause the oxygen-hemoglobin saturation curve to shift ________ reflecting that hemoglobin releases ________ oxygen.

Accepted Answer

A)   left; more
B)   left; less
C)   right; more
D)   right; lessE) A) and C)
F) B) and C)

Question 8

On each side of the chest, the ________ pleura lines the internal thoracic wall, and the ________ pleura tightly covers the lung.

Accepted Answer

A)   thoracic; pulmonary
B)   parietal; visceral
C)   visceral; parietal
D)   fibrous; serous
E)   respiratory; pleuralF) B) and D)
G) None of the above

Question 9

As blood travels through a systemic capillary and exchanges gases with systemic cells,

Accepted Answer

A)   the partial pressure of oxygen in blood decreases as it goes from arterioles to venules.
B)   the partial pressure of oxygen in blood increases as it goes from arterioles to venules.
C)   the partial pressure of oxygen on blood remains the same as it goes from arterioles to venules.D) None of the above
E) All of the above

Question 10

Mucin ________ the viscosity of mucus, facilitating the ________ of dust and dirt particles.

Accepted Answer

A)   increases; trapping
B)   decreases; flushing
C)   increases; diluting
D)   decreases; exocytosisE) A) and B)
F) All of the above

Question 11

The region of the nasal cavity immediately internal to the nostrils is the ________; it contains coarse guard hairs.

Accepted Answer

A)   choanae
B)   olfactory region
C)   vestibule
D)   respiratory region
E)   nasopharynxF) A) and E)
G) D) and E)

Question 12

Which type of receptor initiates the inhalation (or Hering-Breuer)  reflex?

Accepted Answer

A)   Central chemoreceptors
B)   Baroreceptors
C)   Peripheral chemoreceptors
D)   ProprioceptorsE) A) and B)
F) None of the above

Question 13

The nose contains a single septal cartilage. How many alar cartilages are in the nose?

Accepted Answer

A)   One
B)   Two
C)   Three
D)   FourE) A) and B)
F) All of the above

Question 14

Which reaction involving CO2 predominates within erythrocytes in the pulmonary capillaries of the lung?

Accepted Answer

A)   HCO-3 combines with H+ to form H2CO3, which dissociates into CO2 and H2O.
B)   HCO-3 dissociates into H+, CO, and O2.
C)   CO2 combines with H+ to form HCO2.
D)   CO2 combines with water to form bicarbonate ion and carbonic acid.E) A) and C)
F) B) and D)

Question 15

The chest wall is anatomically configured to contract inwardly, so that when the thorax is opened surgically its walls collapse.

Accepted Answer

A) True 
 B)False

Question 16

The epithelial lining of the oropharynx and the superior larynx (vocal cords) is nonkeratinized stratified squamous.

Accepted Answer

A) True 
 B)False

Exam 23: Respiratory System

As blood travels through a systemic capillary and exchanges gases with systemic cells,

Correct Answer
verified

Which reaction involving CO₂ predominates within erythrocytes in the pulmonary capillaries of the lung?

Correct Answer
verified

The amount of air left in the lungs even after the most forceful expiration is referred to as the ________ volume.

Correct Answer
verified

On each side of the chest, the pleura lines the internal thoracic wall, and the pleura tightly covers the lung.

Correct Answer
verified

The region of the nasal cavity immediately internal to the nostrils is the ________; it contains coarse guard hairs.

Correct Answer
verified

The epithelial lining of the oropharynx and the superior larynx (vocal cords) is nonkeratinized stratified squamous.

Correct Answer
verified

Which type of receptor initiates the inhalation (or Hering-Breuer) reflex?

Correct Answer
verified

The chest wall is anatomically configured to contract inwardly, so that when the thorax is opened surgically its walls collapse.

Correct Answer
verified

An actively contracting muscle will cause local temperature to rise and will produce acidic molecules. Warmth and lower pH cause the oxygen-hemoglobin saturation curve to shift reflecting that hemoglobin releases oxygen.

Correct Answer
verified

The most common cell making up the alveolar wall is the

Correct Answer
verified

Phagocytic cells of the alveolus are the

Correct Answer
verified

Control of pulmonary ventilation. -In this sagittal section showing the upper respiratory tract, what structure does number 4 indicate?

Correct Answer
verified

What connects the pharynx to the trachea?

Correct Answer
verified

Mucin the viscosity of mucus, facilitating the of dust and dirt particles.

Correct Answer
verified

Which statement accurately describes alveolar exchange of oxygen?

Correct Answer
verified

The nose contains a single septal cartilage. How many alar cartilages are in the nose?

Correct Answer
verified

Exam 23: Respiratory System

As blood travels through a systemic capillary and exchanges gases with systemic cells,

Correct AnswerverifiedShow Answer

Which reaction involving CO2 predominates within erythrocytes in the pulmonary capillaries of the lung?

Correct AnswerverifiedShow Answer

The amount of air left in the lungs even after the most forceful expiration is referred to as the ________ volume.

Correct AnswerverifiedShow Answer

On each side of the chest, the ________ pleura lines the internal thoracic wall, and the ________ pleura tightly covers the lung.

Correct AnswerverifiedShow Answer

The region of the nasal cavity immediately internal to the nostrils is the ________; it contains coarse guard hairs.

Correct AnswerverifiedShow Answer

The epithelial lining of the oropharynx and the superior larynx (vocal cords) is nonkeratinized stratified squamous.

Correct AnswerverifiedShow Answer

Which type of receptor initiates the inhalation (or Hering-Breuer) reflex?

Correct AnswerverifiedShow Answer

The chest wall is anatomically configured to contract inwardly, so that when the thorax is opened surgically its walls collapse.

Correct AnswerverifiedShow Answer

An actively contracting muscle will cause local temperature to rise and will produce acidic molecules. Warmth and lower pH cause the oxygen-hemoglobin saturation curve to shift ________ reflecting that hemoglobin releases ________ oxygen.

Correct AnswerverifiedShow Answer

The most common cell making up the alveolar wall is the

Correct AnswerverifiedShow Answer

Phagocytic cells of the alveolus are the

Correct AnswerverifiedShow Answer

Control of pulmonary ventilation. -In this sagittal section showing the upper respiratory tract, what structure does number 4 indicate?

Correct AnswerverifiedShow Answer

What connects the pharynx to the trachea?

Correct AnswerverifiedShow Answer

Mucin ________ the viscosity of mucus, facilitating the ________ of dust and dirt particles.

Correct AnswerverifiedShow Answer

Which statement accurately describes alveolar exchange of oxygen?

Correct AnswerverifiedShow Answer

The nose contains a single septal cartilage. How many alar cartilages are in the nose?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Which reaction involving CO₂ predominates within erythrocytes in the pulmonary capillaries of the lung?

Correct Answer
verified

Correct Answer
verified

On each side of the chest, the pleura lines the internal thoracic wall, and the pleura tightly covers the lung.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

An actively contracting muscle will cause local temperature to rise and will produce acidic molecules. Warmth and lower pH cause the oxygen-hemoglobin saturation curve to shift reflecting that hemoglobin releases oxygen.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Mucin the viscosity of mucus, facilitating the of dust and dirt particles.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified