Question 1

A greater than normal amount of CO2 in the blood is called

Accepted Answer

A) hypercapnia. 
B) hypoxia. 
C) hyperdioxemia. 
D) hypodioxemia. 
A) hypercapnia. 
B) hypoxia. 
C) hyperdioxemia. 
D) hypodioxemia.

Question 2

As temperature increases,how would this affect the oxyhemoglobin-dissociation curve?

Accepted Answer

A) shift it to the left 
B) shift it to the right 
C) no change 
D) shift it up 
E) None of these choices is correct 
A) shift it to the left 
B) shift it to the right 
C) no change 
D) shift it up 
E) None of these choices is correct

Question 3

It is possible to consciously control the rate and depth of respiration.

Accepted Answer

A) True 
 B)False

Question 4

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 5

A protective function of the respiratory system would be

Accepted Answer

A) altering blood pH by changing blood CO2 levels. 
B) olfaction by drawing molecules into the nasal cavity. 
C) producing ACE which helps regulate blood pressure. 
D) preventing microorganisms from entering the body. 
A) altering blood pH by changing blood CO2 levels. 
B) olfaction by drawing molecules into the nasal cavity. 
C) producing ACE which helps regulate blood pressure. 
D) preventing microorganisms from entering the body.

Question 6

As the result of an asthmatic attack,

Accepted Answer

A) ventilation exceeds the ability of blood to pick up oxygen. 
B) ventilation is inadequate to oxygenate blood. 
C) pulmonary blood flow is reduced while ventilation remains normal. 
D) the surface area available for gas exchange increases. 
E) bronchioles dilate. 
A) ventilation exceeds the ability of blood to pick up oxygen. 
B) ventilation is inadequate to oxygenate blood. 
C) pulmonary blood flow is reduced while ventilation remains normal. 
D) the surface area available for gas exchange increases. 
E) bronchioles dilate.

Question 7

When carbon dioxide levels in the blood increase,the

Accepted Answer

A) condition is called hypocapnia. 
B) pH of the blood increases. 
C) blood becomes more acidic. 
D) number of hydrogen ions in the blood decreases. 
E) blood becomes more alkaline. 
A) condition is called hypocapnia. 
B) pH of the blood increases. 
C) blood becomes more acidic. 
D) number of hydrogen ions in the blood decreases. 
E) blood becomes more alkaline.

Question 8

Which of the following is part of the upper respiratory tract?

Accepted Answer

A) lungs 
B) pharynx 
C) trachea 
D) bronchi 
E) bronchioles 
A) lungs 
B) pharynx 
C) trachea 
D) bronchi 
E) bronchioles

Question 9

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

Accepted Answer

A) destruction of the alveolar walls 
B) inflammation of the bronchii 
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 bronchii 
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

Blood oxygen levels

Accepted Answer

A) are more important than carbon dioxide 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 carbon dioxide 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 11

Which of the following is an effect of aging on the respiratory system?

Accepted Answer

A) vital capacity is unchanged 
B) minute ventilation rates increase 
C) residual volume increases 
D) gas exchange in the lungs remains unchanged 
A) vital capacity is unchanged 
B) minute ventilation rates increase 
C) residual volume increases 
D) gas exchange in the lungs remains unchanged

Question 12

If the total pressure of a mixture of gases was 760 mm Hg and its composition is 20% oxygen,0.04% carbon dioxide,75% nitrogen,and 5% water vapor,then the partial pressure of oxygen would be

Accepted Answer

A) 740 mm Hg. 
B) 20 mm Hg. 
C) 148 mm Hg. 
D) 152 mm Hg. 
E) 200 mm Hg. 
A) 740 mm Hg. 
B) 20 mm Hg. 
C) 148 mm Hg. 
D) 152 mm Hg. 
E) 200 mm Hg.

Question 13

During swallowing,the opening into the larynx is covered by the

Accepted Answer

A) epiglottis. 
B) thyroid cartilage. 
C) cricoid cartilage. 
D) arytenoid cartilage. 
E) the "Adam's apple". 
A) epiglottis. 
B) thyroid cartilage. 
C) cricoid cartilage. 
D) arytenoid cartilage. 
E) the "Adam's apple".

Question 14

Which of the following is NOT a function of the pseudostratified ciliated columnar epithelium of the nasal cavity?

Accepted Answer

A) traps dirt and removes it from the air 
B) moisturizes the air 
C) exchanges oxygen and carbon dioxide 
D) warms the air 
A) traps dirt and removes it from the air 
B) moisturizes the air 
C) exchanges oxygen and carbon dioxide 
D) warms the air

Question 15

Match the term with the appropriate description,answer with the letter preceding the description.
-external nares "Enter the letter of the correct description below"

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 16

Hemoglobin that has oxygen attached is called

Accepted Answer

A) hemoglobin-oxygen complex. 
B) carbaminohemoglobin. 
C) oxyhemoglobin. 
D) deoxyhemoglobin. 
E) globoxygen. 
A) hemoglobin-oxygen complex. 
B) carbaminohemoglobin. 
C) oxyhemoglobin. 
D) deoxyhemoglobin. 
E) globoxygen.

Question 17

The volume of air inspired or expired with each breath is the

Accepted Answer

A) residual volume. 
B) inspiratory reserve volume. 
C) tidal volume. 
D) expiratory reserve volume. 
A) residual volume. 
B) inspiratory reserve volume. 
C) tidal volume. 
D) expiratory reserve volume.

Question 18

When air passes through the glottis,which structures vibrate to produce sound?

Accepted Answer

A) thyroid folds 
B) ventricular folds 
C) epiglottal cords 
D) cricohyoid folds 
E) vocal folds (cords) 
A) thyroid folds 
B) ventricular folds 
C) epiglottal cords 
D) cricohyoid folds 
E) vocal folds (cords)

Question 19

Why is transfused blood discarded after about 6 weeks of storage?

Accepted Answer

A) It can not bind to oxygen anymore. 
B) It becomes too thick. 
C) The BPG levels are too low for adequate release of oxygen to tissues. 
D) The percent oxygen saturation is too low. 
A) It can not bind to oxygen anymore. 
B) It becomes too thick. 
C) The BPG levels are too low for adequate release of oxygen to tissues. 
D) The percent oxygen saturation is too low.

Question 20

Mr.Huff and Puff 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.

Exam 23: Respiratory System

A greater than normal amount of CO2 in the blood is called

As temperature increases,how would this affect the oxyhemoglobin-dissociation curve?

It is possible to consciously control the rate and depth of respiration.

The diameter of bronchioles can change because their walls contain

A protective function of the respiratory system would be

As the result of an asthmatic attack,

When carbon dioxide levels in the blood increase,the

Which of the following is part of the upper respiratory tract?

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

Blood oxygen levels

Which of the following is an effect of aging on the respiratory system?

If the total pressure of a mixture of gases was 760 mm Hg and its composition is 20% oxygen,0.04% carbon dioxide,75% nitrogen,and 5% water vapor,then the partial pressure of oxygen would be

During swallowing,the opening into the larynx is covered by the

Which of the following is NOT a function of the pseudostratified ciliated columnar epithelium of the nasal cavity?

Match the term with the appropriate description,answer with the letter preceding the description. -external nares "Enter the letter of the correct description below"

Hemoglobin that has oxygen attached is called

The volume of air inspired or expired with each breath is the

When air passes through the glottis,which structures vibrate to produce sound?

Why is transfused blood discarded after about 6 weeks of storage?

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

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints 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-Based Balance

Reproductive System

Development,growth,aging,and Genetics

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A greater than normal amount of CO₂ in the blood is called