Question 1

The beating of the cilia of the respiratory passages in the direction of the pharynx forms a(n)

Accepted Answer

A) debris filter. 
B) mucus escalator. 
C) respiratory rhythmicity center. 
D) sticky surface. 
E) increased surface area for gas exchange. 
A) debris filter. 
B) mucus escalator. 
C) respiratory rhythmicity center. 
D) sticky surface. 
E) increased surface area for gas exchange.

Question 2

Inhaling through the nostrils is preferred over the mouth because

Accepted Answer

A) there is less resistance to air flow. 
B) it combines olfaction with respiration. 
C) it allows better conditioning of the inhaled air. 
D) bacteria won't be inhaled from the oral cavity. 
E) it dries out the mouth. 
A) there is less resistance to air flow. 
B) it combines olfaction with respiration. 
C) it allows better conditioning of the inhaled air. 
D) bacteria won't be inhaled from the oral cavity. 
E) it dries out the mouth.

Question 3

Moving air to and from exchange surfaces is called

Accepted Answer

A) ventilation. 
B) conduction. 
C) external respiration. 
D) internal respiration. 
E) compliance. 
A) ventilation. 
B) conduction. 
C) external respiration. 
D) internal respiration. 
E) compliance.

Question 4

The largest cartilage of the larynx is the ________ cartilage.

Accepted Answer

A) thyroid 
B) cricoid 
C) cuneiform 
D) arytenoid 
E) epiglottic 
A) thyroid 
B) cricoid 
C) cuneiform 
D) arytenoid 
E) epiglottic

Question 5

Each 100 ml of blood leaving the alveolar capillaries carries away roughly ________ ml of oxygen.

Accepted Answer

A) 10 
B) 20 
C) 30 
D) 50 
E) 75 
A) 10 
B) 20 
C) 30 
D) 50 
E) 75

Question 6

The C shape of the tracheal cartilages is important because

Accepted Answer

A) large masses of food can move through the esophagus. 
B) large masses of air can pass through the trachea and thus the bronchi. 
C) it facilitates turning of the head. 
D) the bronchi are also C-shaped. 
E) it permits the trachea to pinch shut prior to sneezing. 
A) large masses of food can move through the esophagus. 
B) large masses of air can pass through the trachea and thus the bronchi. 
C) it facilitates turning of the head. 
D) the bronchi are also C-shaped. 
E) it permits the trachea to pinch shut prior to sneezing.

Question 7

Which of the following age-based changes is false?

Accepted Answer

A) The lungs lose elastic tissue. 
B) The lung's compliance changes. 
C) Vital capacity increases. 
D) Respiratory muscles weaken. 
E) Costal cartilages become more flexible. 
A) The lungs lose elastic tissue. 
B) The lung's compliance changes. 
C) Vital capacity increases. 
D) Respiratory muscles weaken. 
E) Costal cartilages become more flexible.

Question 8

Blockage of pulmonary blood flow by a clot or similar obstruction is

Accepted Answer

A) emphysema. 
B) COPD. 
C) anoxia. 
D) pulmonary embolism. 
E) pneumothorax. 
A) emphysema. 
B) COPD. 
C) anoxia. 
D) pulmonary embolism. 
E) pneumothorax.

Question 9

During exercise,which of the following contract for active exhalation?

Accepted Answer

A) rectus abdominis and internal intercostal muscles 
B) diaphragm and internal intercostal muscles 
C) rectus abdominis and diaphragm muscles 
D) diaphragm and external intercostal muscles 
E) pectoralis major and serratus anterior muscles 
A) rectus abdominis and internal intercostal muscles 
B) diaphragm and internal intercostal muscles 
C) rectus abdominis and diaphragm muscles 
D) diaphragm and external intercostal muscles 
E) pectoralis major and serratus anterior muscles

Question 10

The auditory tubes open into the

Accepted Answer

A) nasopharynx. 
B) oropharynx. 
C) laryngopharynx. 
D) larynx. 
E) nasal cavity. 
A) nasopharynx. 
B) oropharynx. 
C) laryngopharynx. 
D) larynx. 
E) nasal cavity.

Question 11

The laryngeal cartilage which is not composed of hyaline cartilage is the

Accepted Answer

A) arytenoid. 
B) corniculate. 
C) cricoid. 
D) epiglottis. 
E) thyroid. 
A) arytenoid. 
B) corniculate. 
C) cricoid. 
D) epiglottis. 
E) thyroid.

Question 12

Hemoglobin's affinity for oxygen when the BPG level is high is

Accepted Answer

A) greater than hemoglobin's affinity for oxygen when the BPG level is low. 
B) less than hemoglobin's affinity for oxygen when the BPG level is low. 
C) equal to hemoglobin's affinity for oxygen when the BPG level is low. 
D) equal to hemoglobin's affinity for oxygen when pH is low. 
E) None of the answers is correct. 
A) greater than hemoglobin's affinity for oxygen when the BPG level is low. 
B) less than hemoglobin's affinity for oxygen when the BPG level is low. 
C) equal to hemoglobin's affinity for oxygen when the BPG level is low. 
D) equal to hemoglobin's affinity for oxygen when pH is low. 
E) None of the answers is correct.

Question 13

Internal respiration refers to exchange of oxygen and carbon dioxide between the blood and the

Accepted Answer

A) alveoli. 
B) respiratory bronchioles. 
C) alveoli and respiratory bronchioles. 
D) tissues and interstitial fluid. 
E) conducting portion of the respiratory system. 
A) alveoli. 
B) respiratory bronchioles. 
C) alveoli and respiratory bronchioles. 
D) tissues and interstitial fluid. 
E) conducting portion of the respiratory system.

Question 14

The partial pressure of oxygen in arterial blood is approximately

Accepted Answer

A) 40 mm Hg. 
B) 45 mm Hg. 
C) 50 mm Hg. 
D) 70 mm Hg. 
E) 100 mm Hg. 
A) 40 mm Hg. 
B) 45 mm Hg. 
C) 50 mm Hg. 
D) 70 mm Hg. 
E) 100 mm Hg.

Question 15

Exposure to ________ generally causes a rapid increase in the rate of mucus production in the nasal cavity and paranasal sinuses.

Accepted Answer

A) noxious vapors 
B) unpleasant stimuli 
C) allergens 
D) debris or pathogens 
E) All of the answers are correct. 
A) noxious vapors 
B) unpleasant stimuli 
C) allergens 
D) debris or pathogens 
E) All of the answers are correct.

Question 16

Physical damage to the lamina propria of the nasal mucosa is likely to result in

Accepted Answer

A) epistaxis. 
B) nasal congestion. 
C) nosebleeds. 
D) a deviated septum. 
E) epistaxis or nosebleeds. 
A) epistaxis. 
B) nasal congestion. 
C) nosebleeds. 
D) a deviated septum. 
E) epistaxis or nosebleeds.

Question 17

The condition resulting from inadequate production of surfactant and the resultant collapse of alveoli is

Accepted Answer

A) respiratory distress syndrome. 
B) COPD. 
C) anoxia. 
D) pulmonary embolism. 
E) pneumothorax. 
A) respiratory distress syndrome. 
B) COPD. 
C) anoxia. 
D) pulmonary embolism. 
E) pneumothorax.

Question 18

A pair of ligaments covered by laryngeal epithelium that function in sound production are the

Accepted Answer

A) intrinsic ligaments. 
B) extrinsic ligaments. 
C) ventricular folds. 
D) vocal folds. 
E) intrinsic laryngeal muscles. 
A) intrinsic ligaments. 
B) extrinsic ligaments. 
C) ventricular folds. 
D) vocal folds. 
E) intrinsic laryngeal muscles.

Question 19

The nasal cavity opens into the nasopharynx through a connection known as the

Accepted Answer

A) oropharynx. 
B) nasal meatus. 
C) nasal vestibule. 
D) internal nares. 
E) auditory canal. 
A) oropharynx. 
B) nasal meatus. 
C) nasal vestibule. 
D) internal nares. 
E) auditory canal.

Question 20

Which of the following statements about the trachea is false?

Accepted Answer

A) It is lined by pseudostratified ciliated columnar epithelium. 
B) Tracheal cartilages prevent tracheal collapse. 
C) It contains many mucous glands. 
D) It alters its diameter in response to the autonomic nervous system. 
E) It is reinforced with D-shaped cartilages. 
A) It is lined by pseudostratified ciliated columnar epithelium. 
B) Tracheal cartilages prevent tracheal collapse. 
C) It contains many mucous glands. 
D) It alters its diameter in response to the autonomic nervous system. 
E) It is reinforced with D-shaped cartilages.

Exam 23: The Respiratory System

The beating of the cilia of the respiratory passages in the direction of the pharynx forms a(n)

Inhaling through the nostrils is preferred over the mouth because

Moving air to and from exchange surfaces is called

The largest cartilage of the larynx is the ________ cartilage.

Each 100 ml of blood leaving the alveolar capillaries carries away roughly ________ ml of oxygen.

The C shape of the tracheal cartilages is important because

Which of the following age-based changes is false?

Blockage of pulmonary blood flow by a clot or similar obstruction is

During exercise,which of the following contract for active exhalation?

The auditory tubes open into the

The laryngeal cartilage which is not composed of hyaline cartilage is the

Hemoglobin's affinity for oxygen when the BPG level is high is

Internal respiration refers to exchange of oxygen and carbon dioxide between the blood and the

The partial pressure of oxygen in arterial blood is approximately

Exposure to ________ generally causes a rapid increase in the rate of mucus production in the nasal cavity and paranasal sinuses.

Physical damage to the lamina propria of the nasal mucosa is likely to result in

The condition resulting from inadequate production of surfactant and the resultant collapse of alveoli is

A pair of ligaments covered by laryngeal epithelium that function in sound production are the

The nasal cavity opens into the nasopharynx through a connection known as the

Which of the following statements about the trachea is false?

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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