Question 1

Most of the carbon dioxide in the blood is transported as

Accepted Answer

A) solute dissolved in the plasma. 
B) carbaminohemoglobin. 
C) bicarbonate ions. 
D) solute dissolved in the cytoplasm of red blood cells. 
E) carbonic acid. 
A) solute dissolved in the plasma. 
B) carbaminohemoglobin. 
C) bicarbonate ions. 
D) solute dissolved in the cytoplasm of red blood cells. 
E) carbonic acid.

Question 2

A pulmonary embolism can be caused by ________ becoming trapped in a pulmonary artery.

Accepted Answer

A) blood clots 
B) masses of fat 
C) air bubbles 
D) circulating objects in the blood 
E) All of the answers are correct. 
A) blood clots 
B) masses of fat 
C) air bubbles 
D) circulating objects in the blood 
E) All of the answers are correct.

Question 3

The placement of a tube directly into the trachea to bypass the larynx is called a(n)

Accepted Answer

A) intubation. 
B) tracheostomy. 
C) tunnelization. 
D) trachectomy. 
E) catheterization. 
A) intubation. 
B) tracheostomy. 
C) tunnelization. 
D) trachectomy. 
E) catheterization.

Question 4

Air passing through the glottis vibrates the vocal folds and produces

Accepted Answer

A) speech. 
B) articulation. 
C) phonation. 
D) whistling. 
E) ululation. 
A) speech. 
B) articulation. 
C) phonation. 
D) whistling. 
E) ululation.

Question 5

The nasopharynx transitions into the oropharynx at the level of the

Accepted Answer

A) hard palate. 
B) soft palate. 
C) cribriform plate. 
D) internal nares. 
E) pharyngeal septum. 
A) hard palate. 
B) soft palate. 
C) cribriform plate. 
D) internal nares. 
E) pharyngeal septum.

Question 6

Expiratory movements are produced by contraction of the ________ muscle.

Accepted Answer

A) scalene 
B) diaphragm 
C) internal intercostal 
D) external intercostal 
E) serratus anterior 
A) scalene 
B) diaphragm 
C) internal intercostal 
D) external intercostal 
E) serratus anterior

Question 7

For maximum loading of hemoglobin with oxygen at the lungs,the

Accepted Answer

A) PCO₂ should be high. 
B) pH should be slightly acidic. 
C) PO₂ should be about 70 mm Hg. 
D) BPG levels in the red blood cells should be high. 
E) PO2 should be as high as possible. 
A) PCO₂ should be high. 
B) pH should be slightly acidic. 
C) PO₂ should be about 70 mm Hg. 
D) BPG levels in the red blood cells should be high. 
E) PO2 should be as high as possible.

Question 8

The resulting pain and inflammation when pleural fluid is unable to prevent friction between the opposing pleural surfaces is known as

Accepted Answer

A) pleurisy. 
B) pulmonary hypertension. 
C) asthma. 
D) emphysema. 
E) COPD. 
A) pleurisy. 
B) pulmonary hypertension. 
C) asthma. 
D) emphysema. 
E) COPD.

Question 9

The ________ branch from the trachea at the carina.

Accepted Answer

A) terminal bronchioles 
B) secondary bronchi 
C) tertiary bronchi 
D) primary bronchi 
E) alveolar ducts 
A) terminal bronchioles 
B) secondary bronchi 
C) tertiary bronchi 
D) primary bronchi 
E) alveolar ducts

Question 10

Which of the following is false about the pharynx?

Accepted Answer

A) It is shared by the integumentary and respiratory systems. 
B) The nasopharynx is superior. 
C) The oropharynx connects to oral cavity. 
D) The laryngopharynx ends at esophagus opening. 
E) Solids,liquids,and gases pass through. 
A) It is shared by the integumentary and respiratory systems. 
B) The nasopharynx is superior. 
C) The oropharynx connects to oral cavity. 
D) The laryngopharynx ends at esophagus opening. 
E) Solids,liquids,and gases pass through.

Question 11

As an astronaut is lifted into Earth's orbit,what is the first change to take place in response to the drop in cabin pressure?

Accepted Answer

A) increased hematocrit 
B) renal hypoxia 
C) increased alveolar ventilation rate 
D) decreased alveolar PO₂ 
E) decreased hemoglobin saturation 
A) increased hematocrit 
B) renal hypoxia 
C) increased alveolar ventilation rate 
D) decreased alveolar PO₂ 
E) decreased hemoglobin saturation

Question 12

The partial pressure of oxygen in atmospheric air at sea level is

Accepted Answer

A) greater than the partial pressure of oxygen in atmospheric air at the top of Mt.Everest. 
B) less than the partial pressure of oxygen in atmospheric air at the top of Mt.Everest. 
C) equal to the partial pressure of oxygen in atmospheric air at the top of Mt.Everest. 
D) equal to the sum of partial pressures from carbon dioxide and nitrogen. 
E) None of the answers is correct. 
A) greater than the partial pressure of oxygen in atmospheric air at the top of Mt.Everest. 
B) less than the partial pressure of oxygen in atmospheric air at the top of Mt.Everest. 
C) equal to the partial pressure of oxygen in atmospheric air at the top of Mt.Everest. 
D) equal to the sum of partial pressures from carbon dioxide and nitrogen. 
E) None of the answers is correct.

Question 13

The larynx,trachea,bronchi,and bronchioles all make up the

Accepted Answer

A) upper respiratory tract. 
B) lower respiratory tract. 
C) internal respiratory tract. 
D) alveoli of the respiratory tract. 
E) respiratory mucosa. 
A) upper respiratory tract. 
B) lower respiratory tract. 
C) internal respiratory tract. 
D) alveoli of the respiratory tract. 
E) respiratory mucosa.

Question 14

The partial pressure of carbon dioxide in the interstitial space of peripheral tissues is approximately

Accepted Answer

A) 35 mm Hg. 
B) 45 mm Hg. 
C) 55 mm Hg. 
D) 70 mm Hg. 
E) 100 mm Hg. 
A) 35 mm Hg. 
B) 45 mm Hg. 
C) 55 mm Hg. 
D) 70 mm Hg. 
E) 100 mm Hg.

Question 15

Figure 23-2 Mechanics of Ventilation
Use Figure 23-2 to answer the following questions:
-What is the relationship between the pressures at label "8"?

Accepted Answer

A) P outside = P inside B) P outside > P inside C) P outside < P inside D) P outside + P inside E) P outside - P inside A) P outside = P inside B) P outside > P inside C) P outside < P inside D) P outside + P inside E) P outside - P inside

Question 16

The ________ of the lungs is an indication of their expandability,how easily the lungs expand and contract.

Accepted Answer

A) compliance 
B) ventilation 
C) volume 
D) intrapulmonary pressure 
E) cellular respiration 
A) compliance 
B) ventilation 
C) volume 
D) intrapulmonary pressure 
E) cellular respiration

Question 17

The entire array of protective mechanisms in the respiratory system is called the

Accepted Answer

A) respiratory immunity. 
B) macrophage complex. 
C) respiratory defense system. 
D) acquired respiratory defense. 
E) mucus escalator. 
A) respiratory immunity. 
B) macrophage complex. 
C) respiratory defense system. 
D) acquired respiratory defense. 
E) mucus escalator.

Question 18

Alveolar ventilation refers to the

Accepted Answer

A) movement of air into and out of the lungs. 
B) movement of air into and out of the alveoli. 
C) movement of dissolved gases from the alveoli to the blood. 
D) movement of dissolved gases from the blood to the alveoli. 
E) utilization of oxygen by alveolar cells to support metabolism. 
A) movement of air into and out of the lungs. 
B) movement of air into and out of the alveoli. 
C) movement of dissolved gases from the alveoli to the blood. 
D) movement of dissolved gases from the blood to the alveoli. 
E) utilization of oxygen by alveolar cells to support metabolism.

Question 19

The ________ fissure separates the lobes of the left lung.

Accepted Answer

A) lateral 
B) longitudinal 
C) medial 
D) left horizontal 
E) oblique 
A) lateral 
B) longitudinal 
C) medial 
D) left horizontal 
E) oblique

Question 20

The chloride shift occurs in order to

Accepted Answer

A) force oxygen out of the blood and into tissues. 
B) transport bicarbonate ions into the blood plasma. 
C) produce salt for the cytosol of blood cells. 
D) produce carbonic acid. 
E) pump hydrochloric acid out of gastric cells. 
A) force oxygen out of the blood and into tissues. 
B) transport bicarbonate ions into the blood plasma. 
C) produce salt for the cytosol of blood cells. 
D) produce carbonic acid. 
E) pump hydrochloric acid out of gastric cells.

Exam 23: The Respiratory System

Most of the carbon dioxide in the blood is transported as

A pulmonary embolism can be caused by ________ becoming trapped in a pulmonary artery.

The placement of a tube directly into the trachea to bypass the larynx is called a(n)

Air passing through the glottis vibrates the vocal folds and produces

The nasopharynx transitions into the oropharynx at the level of the

Expiratory movements are produced by contraction of the ________ muscle.

For maximum loading of hemoglobin with oxygen at the lungs,the

The resulting pain and inflammation when pleural fluid is unable to prevent friction between the opposing pleural surfaces is known as

The ________ branch from the trachea at the carina.

Which of the following is false about the pharynx?

As an astronaut is lifted into Earth's orbit,what is the first change to take place in response to the drop in cabin pressure?

The partial pressure of oxygen in atmospheric air at sea level is

The larynx,trachea,bronchi,and bronchioles all make up the

The partial pressure of carbon dioxide in the interstitial space of peripheral tissues is approximately

Figure 23-2 Mechanics of Ventilation Use Figure 23-2 to answer the following questions: -What is the relationship between the pressures at label "8"?

The ________ of the lungs is an indication of their expandability,how easily the lungs expand and contract.

The entire array of protective mechanisms in the respiratory system is called the

Alveolar ventilation refers to the

The ________ fissure separates the lobes of the left lung.

The chloride shift occurs in order to

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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