Question 1

The respiratory control areas are in the

Accepted Answer

A)  cerebral cortex. 
B)  pons and medulla oblongata. 
C)  alveoli. 
D)  hypothalamus and hippocampus. 
A)  cerebral cortex. 
B)  pons and medulla oblongata. 
C)  alveoli. 
D)  hypothalamus and hippocampus.

Question 2

The force responsible for normal expiration is supplied by the

Accepted Answer

A)  diaphragm. 
B)  external intercostal muscles. 
C)  elastic recoil of tissues and surface tension. 
D)  contraction of smooth muscles in air passages. 
A)  diaphragm. 
B)  external intercostal muscles. 
C)  elastic recoil of tissues and surface tension. 
D)  contraction of smooth muscles in air passages.

Question 3

The procedure used to directly examine the trachea and bronchial tree is called

Accepted Answer

A)  bronchoscopy. 
B)  tracheostomy. 
C)  tracheotomy. 
D)  laryngectomy. 
A)  bronchoscopy. 
B)  tracheostomy. 
C)  tracheotomy. 
D)  laryngectomy.

Question 4

Which of the following is not a function of the mucus-covered nasal passages?

Accepted Answer

A)  Warming inspired air 
B)  Moistening inspired air 
C)  Entrapping small particles 
D)  Cooling exhaled air 
A)  Warming inspired air 
B)  Moistening inspired air 
C)  Entrapping small particles 
D)  Cooling exhaled air

Question 5

Which of these laryngeal cartilages is single?

Accepted Answer

A)  Cricoid 
B)  Arytenoid 
C)  Corniculate 
D)  Cuneiform 
A)  Cricoid 
B)  Arytenoid 
C)  Corniculate 
D)  Cuneiform

Question 6

Bronchial asthma is usually caused by

Accepted Answer

A)  an injury to the respiratory areas. 
B)  coalescing alveoli. 
C)  an allergy. 
D)  paralysis of breathing muscles. 
A)  an injury to the respiratory areas. 
B)  coalescing alveoli. 
C)  an allergy. 
D)  paralysis of breathing muscles.

Question 7

The glottis is the opening between the vocal cords.

Accepted Answer

A) True 
 B)False

Question 8

Alveoli are kept clean by the action of

Accepted Answer

A)  surfactant. 
B)  antibodies. 
C)  macrophages. 
D)  platelets. 
A)  surfactant. 
B)  antibodies. 
C)  macrophages. 
D)  platelets.

Question 9

Arielle is an 8-year-old with cystic fibrosis. For 30 minutes each morning and evening, a parent holds her body in various positions and massages and kneads the areas over her lungs to dislodge the abundant, sticky mucus, which Arielle spits into a jar. She also takes medication - an enzyme - that thins the mucus. If she didn't take these measures, the mucus in her lungs would most likely increase her risk of

Accepted Answer

A)  cancer. 
B)  emphysema. 
C)  infection. 
D)  asthma. 
A)  cancer. 
B)  emphysema. 
C)  infection. 
D)  asthma.

Question 10

Which of the following is important in maintaining the pH of blood?

Accepted Answer

A)  Oxygen 
B)  Phosphate 
C)  Carbon dioxide 
D)  Nitrogen 
A)  Oxygen 
B)  Phosphate 
C)  Carbon dioxide 
D)  Nitrogen

Question 11

In bronchopulmonary dysplasia, the lungs of newborns become inflamed and scarred. Most infants with this condition recover, but some die. An experimental treatment cultures stem cells from a newborn's umbilical cord. The stem cells, in a lab dish, give rise to type II cells, which in turn give rise to more type I cells. In this treatment

Accepted Answer

A)  the type I cells secrete surfactant and the type II cells form the respiratory membrane. 
B)  the type II cells secrete surfactant and the type I cells form the respiratory membrane. 
C)  both type I and type II cells produce surfactant. 
D)  the stem cells directly replace alveoli. 
A)  the type I cells secrete surfactant and the type II cells form the respiratory membrane. 
B)  the type II cells secrete surfactant and the type I cells form the respiratory membrane. 
C)  both type I and type II cells produce surfactant. 
D)  the stem cells directly replace alveoli.

Question 12

Oxygen is carried in the blood in the form of bicarbonate ions and is bound to hemoglobin.

Accepted Answer

A) True 
 B)False

Question 13

The enzyme carbonic anhydrase causes

Accepted Answer

A)  carbon dioxide to react with water. 
B)  carbon dioxide to react with bicarbonate ions. 
C)  water to react with bicarbonate ions. 
D)  water to react with hydrogen ions. 
A)  carbon dioxide to react with water. 
B)  carbon dioxide to react with bicarbonate ions. 
C)  water to react with bicarbonate ions. 
D)  water to react with hydrogen ions.

Question 14

The chemoreceptors in the carotid and aortic bodies are most sensitive to changes in blood concentration of

Accepted Answer

A)  carbon dioxide. 
B)  hydrogen ions. 
C)  oxygen. 
D)  bicarbonate ions. 
A)  carbon dioxide. 
B)  hydrogen ions. 
C)  oxygen. 
D)  bicarbonate ions.

Question 15

The cells of an alveolus that secrete surfactant are type __.

Accepted Answer

The answer of The cells of an alveolus that secrete...

Question 16

Baby Timothy suffers from apnea and is hooked up to a monitor to warn his parents when he stops breathing. Timothy's dad snores very loudly. Timothy's condition differs from his father's in that infant apnea is

Accepted Answer

A)  due to airway obstruction. 
B)  a result of decreased surfactant. 
C)  a central problem of respiratory control. 
D)  treated by strapping a device onto the nose at night. 
A)  due to airway obstruction. 
B)  a result of decreased surfactant. 
C)  a central problem of respiratory control. 
D)  treated by strapping a device onto the nose at night.

Question 17

The amount of oxygen released from oxyhemoglobin ______ as the concentration of carbon dioxide increases.

Accepted Answer

The answer of The amount of oxygen released from oxyhemoglobin...

Question 18

Cancer that originates in the lungs is most likely to begin in

Accepted Answer

A)  epithelial cells. 
B)  smooth muscle cells. 
C)  dense connective tissue cells. 
D)  hyaline cartilage cells. 
A)  epithelial cells. 
B)  smooth muscle cells. 
C)  dense connective tissue cells. 
D)  hyaline cartilage cells.

Question 19

The pectoralis minors and the sternocleidomastoid are useful in aiding forced expiration.

Accepted Answer

A) True 
 B)False

Question 20

Pneumonia can be caused by

Accepted Answer

A)  bacteria, viruses, or fungi. 
B)  viruses only. 
C)  fungi only. 
D)  bacteria only. 
A)  bacteria, viruses, or fungi. 
B)  viruses only. 
C)  fungi only. 
D)  bacteria only.

Exam 19: Respiratory System

The respiratory control areas are in the

The force responsible for normal expiration is supplied by the

The procedure used to directly examine the trachea and bronchial tree is called

Which of the following is not a function of the mucus-covered nasal passages?

Which of these laryngeal cartilages is single?

Bronchial asthma is usually caused by

The glottis is the opening between the vocal cords.

Alveoli are kept clean by the action of

Which of the following is important in maintaining the pH of blood?

Oxygen is carried in the blood in the form of bicarbonate ions and is bound to hemoglobin.

The enzyme carbonic anhydrase causes

The chemoreceptors in the carotid and aortic bodies are most sensitive to changes in blood concentration of

The cells of an alveolus that secrete surfactant are type __.

Baby Timothy suffers from apnea and is hooked up to a monitor to warn his parents when he stops breathing. Timothy's dad snores very loudly. Timothy's condition differs from his father's in that infant apnea is

The amount of oxygen released from oxyhemoglobin ______ as the concentration of carbon dioxide increases.

Cancer that originates in the lungs is most likely to begin in

The pectoralis minors and the sternocleidomastoid are useful in aiding forced expiration.

Pneumonia can be caused by

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

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