Question 1

Which type of cell makes up about 90% of the alveolar surface?

Accepted Answer

A)  Ciliated simple squamous epithelial cells 
B)  Type I pneumocytes 
C)  Type II pneumocytes 
D)  Macrophages 
A)  Ciliated simple squamous epithelial cells 
B)  Type I pneumocytes 
C)  Type II pneumocytes 
D)  Macrophages

Question 2

The part of the respiratory system where gas exchange does not occur is called ________ space.

Accepted Answer

The answer of The part of the respiratory system where...

Question 3

Which of the following statements concerning the lungs and the pleura is true?

Accepted Answer

A)  Each lung is suspended in a separate pleural cavity. 
B)  Parietal pleura covers the surface of each lung. 
C)  The space between the visceral and parietal pleurae is called the mediastinum. 
D)  The pleural fluid assists in gas exchange. 
E)  The pleural membranes adhere, but cannot slide past each other. 
A)  Each lung is suspended in a separate pleural cavity. 
B)  Parietal pleura covers the surface of each lung. 
C)  The space between the visceral and parietal pleurae is called the mediastinum. 
D)  The pleural fluid assists in gas exchange. 
E)  The pleural membranes adhere, but cannot slide past each other.

Question 4

Blood O2 levels

Accepted Answer

A)  are more important than CO2 levels in the regulation of respiration. 
B)  need to change only slightly to cause a change in respiration rate. 
C)  within the normal PO2 range have little effect on regulation of respiration. 
D)  in venous blood and arterial blood are about the same. 
E)  never change enough to influence respiration. 
A)  are more important than CO2 levels in the regulation of respiration. 
B)  need to change only slightly to cause a change in respiration rate. 
C)  within the normal PO2 range have little effect on regulation of respiration. 
D)  in venous blood and arterial blood are about the same. 
E)  never change enough to influence respiration.

Question 5

Match the term with the appropriate description. Answer with the letter preceding the description.
-Uvula

Accepted Answer

A) The floor of the nasal cavity 
B) Superior portion of pharynx 
C) A soft process that extends inferiorly from the posterior edge of the soft palate 
D) The opening of the nasal cavity into the pharynx 
E) External openings of the nasal cavity 
A) The floor of the nasal cavity 
B) Superior portion of pharynx 
C) A soft process that extends inferiorly from the posterior edge of the soft palate 
D) The opening of the nasal cavity into the pharynx 
E) External openings of the nasal cavity

Question 6

The diameter of bronchioles can change because their walls contain ________.

Accepted Answer

A)  smooth muscle 
B)  skeletal muscle 
C)  fibrous cartilage 
D)  hyaline cartilage 
E)  elastic cartilage 
A)  smooth muscle 
B)  skeletal muscle 
C)  fibrous cartilage 
D)  hyaline cartilage 
E)  elastic cartilage

Question 7

Marcus exhales normally; then, using forced expiration, he exhales as much air as possible. The volume of air still remaining in his lungs is called ________.

Accepted Answer

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

Question 8

Of the following structures, the largest in diameter is the ________.

Accepted Answer

A)  primary bronchus 
B)  secondary bronchus 
C)  respiratory bronchiole 
D)  trachea 
E)  tertiary bronchus 
A)  primary bronchus 
B)  secondary bronchus 
C)  respiratory bronchiole 
D)  trachea 
E)  tertiary bronchus

Question 9

Match the disorder of the respiratory system with the best description.
-Pulmonary fibrosis

Accepted Answer

A) Destruction of the alveolar walls 
B) Inflammation of the bronchi 
C) Inherited disease that affects secretory cells lining the lungs 
D) Replacement of lung tissue with fibrous connective tissue 
E) Infant stops breathing during sleep 
A) Destruction of the alveolar walls 
B) Inflammation of the bronchi 
C) Inherited disease that affects secretory cells lining the lungs 
D) Replacement of lung tissue with fibrous connective tissue 
E) Infant stops breathing during sleep

Question 10

Increased blood flow to alveoli is a common factor that disrupts normal ventilation-perfusion coupling.

Accepted Answer

A) True 
 B)False

Question 11

Match the term with the appropriate description or definition.
-Expiratory reserve volume

Accepted Answer

A) Sum of the inspiratory reserve, expiratory reserve, tidal, and residual volumes 
B) Volume of air inspired during a normal inspiration 
C) Volume of air remaining in lungs after the most forceful expiration 
D) Sum of the expiratory reserve, inspiratory reserve, and tidal volumes 
E) The amount of air that can be forcefully expired after expiration of the normal tidal volume 
A) Sum of the inspiratory reserve, expiratory reserve, tidal, and residual volumes 
B) Volume of air inspired during a normal inspiration 
C) Volume of air remaining in lungs after the most forceful expiration 
D) Sum of the expiratory reserve, inspiratory reserve, and tidal volumes 
E) The amount of air that can be forcefully expired after expiration of the normal tidal volume

Question 12

When 2,3-bisphosphoglycerate (BPG) levels increase, hemoglobin

Accepted Answer

A)  releases less O2 to tissues. 
B)  releases more CO2 to tissues. 
C)  releases more O2 to tissues. 
D)  releases less CO2 to tissues. 
E)  None of the choices are correct. 
A)  releases less O2 to tissues. 
B)  releases more CO2 to tissues. 
C)  releases more O2 to tissues. 
D)  releases less CO2 to tissues. 
E)  None of the choices are correct.

Question 13

Which of the following is NOT part of the respiratory membrane?

Accepted Answer

A)  Simple squamous epithelium of the alveolus and its basement membrane 
B)  Interstitial space 
C)  Pulmonary capillary simple squamous epithelium and its basement membrane 
D)  Thick layer of mucus lining the alveolus 
A)  Simple squamous epithelium of the alveolus and its basement membrane 
B)  Interstitial space 
C)  Pulmonary capillary simple squamous epithelium and its basement membrane 
D)  Thick layer of mucus lining the alveolus

Question 14

Match the disorder of the respiratory system with the best description.
-Emphysema

Accepted Answer

A) Destruction of the alveolar walls 
B) Inflammation of the bronchi 
C) Inherited disease that affects secretory cells lining the lungs 
D) Replacement of lung tissue with fibrous connective tissue 
E) Infant stops breathing during sleep 
A) Destruction of the alveolar walls 
B) Inflammation of the bronchi 
C) Inherited disease that affects secretory cells lining the lungs 
D) Replacement of lung tissue with fibrous connective tissue 
E) Infant stops breathing during sleep

Question 15

Hyperventilation ________ plasma CO2 levels which ________ plasma pH.

Accepted Answer

A)  decreases; decreases 
B)  increases; decreases 
C)  increases; increases 
D)  decreases; increases 
A)  decreases; decreases 
B)  increases; decreases 
C)  increases; increases 
D)  decreases; increases

Question 16

When these ligaments or folds come together, they prevent food from entering the lower respiratory tract.

Accepted Answer

A)  Vocal folds 
B)  Vestibular folds 
C)  Cricothyroid ligaments 
D)  Epiglottic folds 
E)  Both "Vocal folds" and "Vestibular folds" are correct. 
A)  Vocal folds 
B)  Vestibular folds 
C)  Cricothyroid ligaments 
D)  Epiglottic folds 
E)  Both "Vocal folds" and "Vestibular folds" are correct.

Question 17

If there is an accumulation of acidic products in the plasma, one would expect ________.

Accepted Answer

A)  an increase in respiration rate 
B)  a decrease in respiration rate 
C)  no influence on respiration rate 
D)  an increase in residual volume 
E)  apnea 
A)  an increase in respiration rate 
B)  a decrease in respiration rate 
C)  no influence on respiration rate 
D)  an increase in residual volume 
E)  apnea

Question 18

How does an increase in body temperature affect the oxyhemoglobin-dissociation curve?

Accepted Answer

A)  It causes a shift to the left. 
B)  It causes a shift to the right. 
C)  There is no effect. 
D)  None of the choices are correct. 
A)  It causes a shift to the left. 
B)  It causes a shift to the right. 
C)  There is no effect. 
D)  None of the choices are correct.

Question 19

Which law explains why a gas will move from one area to another area?

Accepted Answer

A)  Dalton's Law 
B)  Henry's Law 
C)  Charles Law 
D)  Boyle's Law 
A)  Dalton's Law 
B)  Henry's Law 
C)  Charles Law 
D)  Boyle's Law

Question 20

Which of the following is NOT a respiratory adaptation to exercise training?

Accepted Answer

A)  Vital capacity increases 
B)  Tidal volume at maximal exercise will increase 
C)  Increased minute ventilation after training 
D)  After training, respiratory rate at rest is lower 
A)  Vital capacity increases 
B)  Tidal volume at maximal exercise will increase 
C)  Increased minute ventilation after training 
D)  After training, respiratory rate at rest is lower

Exam 23: Respiratory System

Which type of cell makes up about 90% of the alveolar surface?

The part of the respiratory system where gas exchange does not occur is called ________ space.

Which of the following statements concerning the lungs and the pleura is true?

Blood O2 levels

Match the term with the appropriate description. Answer with the letter preceding the description. -Uvula

The diameter of bronchioles can change because their walls contain ________.

Marcus exhales normally; then, using forced expiration, he exhales as much air as possible. The volume of air still remaining in his lungs is called ________.

Of the following structures, the largest in diameter is the ________.

Match the disorder of the respiratory system with the best description. -Pulmonary fibrosis

Increased blood flow to alveoli is a common factor that disrupts normal ventilation-perfusion coupling.

Match the term with the appropriate description or definition. -Expiratory reserve volume

When 2,3-bisphosphoglycerate (BPG) levels increase, hemoglobin

Which of the following is NOT part of the respiratory membrane?

Match the disorder of the respiratory system with the best description. -Emphysema

Hyperventilation ________ plasma CO2 levels which ________ plasma pH.

When these ligaments or folds come together, they prevent food from entering the lower respiratory tract.

If there is an accumulation of acidic products in the plasma, one would expect ________.

How does an increase in body temperature affect the oxyhemoglobin-dissociation curve?

Which law explains why a gas will move from one area to another area?

Which of the following is NOT a respiratory adaptation to exercise training?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joint and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters

Blood O₂ levels

Hyperventilation plasma CO₂ levels which plasma pH.