Question 1

Which of the following decreases respiratory efficiency?

Accepted Answer

A)  decreased blood flow 
B)  increased surface area 
C)  increased partial pressure gradients 
D)  increased gas solubility 
E)  decreased diffusion distance 
A)  decreased blood flow 
B)  increased surface area 
C)  increased partial pressure gradients 
D)  increased gas solubility 
E)  decreased diffusion distance

Question 2

Severing the sensory fibers from the lungs would result in all of the following except

Accepted Answer

A)  less inhibition of the inspiratory center during forced breathing. 
B)  a drop in tidal volume. 
C)  potential damage to the lungs due to overinflation. 
D)  a disappearance of the Hering-Breuer reflexes. 
E)  less stimulation of the expiratory center during forced breathing. 
A)  less inhibition of the inspiratory center during forced breathing. 
B)  a drop in tidal volume. 
C)  potential damage to the lungs due to overinflation. 
D)  a disappearance of the Hering-Breuer reflexes. 
E)  less stimulation of the expiratory center during forced breathing.

Question 3

Which of the following statements about the chloride shift is false?

Accepted Answer

A)  It involves a movement of chloride ion into RBCs. 
B)  It depends on the chloride-bicarbonate countertransporter. 
C)  It involves a movement of bicarbonate ions into the plasma. 
D)  It is driven by a rise in PCO2. 
E)  It causes RBCs to swell. 
A)  It involves a movement of chloride ion into RBCs. 
B)  It depends on the chloride-bicarbonate countertransporter. 
C)  It involves a movement of bicarbonate ions into the plasma. 
D)  It is driven by a rise in PCO2. 
E)  It causes RBCs to swell.

Question 4

The partial pressure of oxygen in the interstitial space of peripheral tissues 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 5

In-Text Figure Based Questions
-What type of muscle wraps around a respiratory bronchiole and can change the diameter of the airway? (Figure23-8)

Accepted Answer

A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
D)  voluntary muscle 
E)  respiratory muscle 
A)  skeletal muscle 
B)  smooth muscle 
C)  cardiac muscle 
D)  voluntary muscle 
E)  respiratory muscle

Question 6

Stimulation of the apneustic center would result in

Accepted Answer

A)  increased respiratory rate. 
B)  more intense inhalation. 
C)  a shorter respiratory cycle. 
D)  less activity in the DRG center. 
E)  decreased vital capacity. 
A)  increased respiratory rate. 
B)  more intense inhalation. 
C)  a shorter respiratory cycle. 
D)  less activity in the DRG center. 
E)  decreased vital capacity.

Question 7

Tuberculosis results from an infection by the bacterium

Accepted Answer

A)  Clostridium difficile. 
B)  Staphylococcus aureus. 
C)  Mycobacterium tuberculosis. 
D)  Vancomycin-resistant streptococcus. 
E)  Tuberculin plumonae. 
A)  Clostridium difficile. 
B)  Staphylococcus aureus. 
C)  Mycobacterium tuberculosis. 
D)  Vancomycin-resistant streptococcus. 
E)  Tuberculin plumonae.

Question 8

Boyle's law of gases states that

Accepted Answer

A)  the pressure and volume of a gas are equal. 
B)  as the temperature goes up, the pressure goes up. 
C)  the total gas pressure is equal to the sum of the partial pressures. 
D)  the concentration of dissolved gas is proportional to its partial pressure. 
E)  if the volume goes up, the pressure goes down. 
A)  the pressure and volume of a gas are equal. 
B)  as the temperature goes up, the pressure goes up. 
C)  the total gas pressure is equal to the sum of the partial pressures. 
D)  the concentration of dissolved gas is proportional to its partial pressure. 
E)  if the volume goes up, the pressure goes down.

Question 9

Information from chemoreceptors travels to the brain via the ________ nerves.

Accepted Answer

A)  trigeminal 
B)  hypoglossal 
C)  vagus 
D)  glossopharyngeal 
E)  vagus and glossopharyngeal 
A)  trigeminal 
B)  hypoglossal 
C)  vagus 
D)  glossopharyngeal 
E)  vagus and glossopharyngeal

Question 10

The normal respiratory rate of a resting adult ranges from ________ breaths each minute, or roughly onefor every four heartbeats.

Accepted Answer

A)  6-10 
B)  8-14 
C)  10-15 
D)  12-18 
E)  18-22 
A)  6-10 
B)  8-14 
C)  10-15 
D)  12-18 
E)  18-22

Question 11

If the volume of the lungs increases, what happens to the air pressure inside the lungs?

Accepted Answer

A)  It decreases. 
B)  It increases and possibly damages the lungs. 
C)  It increases twice the amount of the increase in volume. 
D)  It remains constant. 
E)  It increases. 
A)  It decreases. 
B)  It increases and possibly damages the lungs. 
C)  It increases twice the amount of the increase in volume. 
D)  It remains constant. 
E)  It increases.

Question 12

Dalton's law states that

Accepted Answer

A)  gas volume and temperature are directly proportional. 
B)  gas volume and pressure are inversely proportional. 
C)  the volume of gas that will dissolve in a solvent is proportional to the solubility of the gas and the gas pressure. 
D)  in a mixture of gases such as air, the total pressure is the sum of the individual partial pressures of the gases in the mixture. 
E)  gas pressure is inversely proportional to gas volume. 
A)  gas volume and temperature are directly proportional. 
B)  gas volume and pressure are inversely proportional. 
C)  the volume of gas that will dissolve in a solvent is proportional to the solubility of the gas and the gas pressure. 
D)  in a mixture of gases such as air, the total pressure is the sum of the individual partial pressures of the gases in the mixture. 
E)  gas pressure is inversely proportional to gas volume.

Question 13

Accidently sending fluid up out of the nose happens when the ________ fails to close off the ________.

Accepted Answer

A)  epiglottis; larynx 
B)  epiglottis; nasopharynx 
C)  soft palate; nasopharynx 
D)  soft palate; larynx 
E)  soft palate; oropharynx 
A)  epiglottis; larynx 
B)  epiglottis; nasopharynx 
C)  soft palate; nasopharynx 
D)  soft palate; larynx 
E)  soft palate; oropharynx

Question 14

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 15

The airway that connects the larynx to the bronchial tree is the

Accepted Answer

A)  trachea. 
B)  bronchiole. 
C)  laryngopharynx. 
D)  alveolar duct. 
E)  bronchus. 
A)  trachea. 
B)  bronchiole. 
C)  laryngopharynx. 
D)  alveolar duct. 
E)  bronchus.

Question 16

Contraction of the intrinsic laryngeal muscles can

Accepted Answer

A)  move the cricoid cartilage. 
B)  close the glottis. 
C)  constrict the trachea. 
D)  move food from the larynx to the esophagus. 
E)  assist in breathing during exercise. 
A)  move the cricoid cartilage. 
B)  close the glottis. 
C)  constrict the trachea. 
D)  move food from the larynx to the esophagus. 
E)  assist in breathing during exercise.

Question 17

The ________ is shared by the respiratory and digestive systems.

Accepted Answer

A)  pharynx 
B)  esophagus 
C)  trachea 
D)  windpipe 
E)  right mainstem bronchus 
A)  pharynx 
B)  esophagus 
C)  trachea 
D)  windpipe 
E)  right mainstem bronchus

Question 18

All of the following provide chemoreceptor input to the respiratory centers of the medulla oblongata except the

Accepted Answer

A)  olfactory epithelium. 
B)  medullary chemoreceptors. 
C)  aortic body. 
D)  carotid body. 
E)  central chemoreceptors. 
A)  olfactory epithelium. 
B)  medullary chemoreceptors. 
C)  aortic body. 
D)  carotid body. 
E)  central chemoreceptors.

Question 19

The interlobular septa divide the lungs into

Accepted Answer

A)  lobes. 
B)  pulmonary lobules. 
C)  alveolar sacs. 
D)  vital capacity and residual volume. 
E)  visceral pleura and fibrous trabeculae. 
A)  lobes. 
B)  pulmonary lobules. 
C)  alveolar sacs. 
D)  vital capacity and residual volume. 
E)  visceral pleura and fibrous trabeculae.

Question 20

When there is no air movement, the relationship between the intrapulmonary and atmospheric pressure is that

Accepted Answer

A)  they are equal. 
B)  intrapulmonary pressure is greater than atmospheric. 
C)  atmospheric pressure is less than intrapulmonary. 
D)  atmospheric pressure is more than intrapulmonary. 
E)  intrapulmonary pressure is less than atmospheric. 
A)  they are equal. 
B)  intrapulmonary pressure is greater than atmospheric. 
C)  atmospheric pressure is less than intrapulmonary. 
D)  atmospheric pressure is more than intrapulmonary. 
E)  intrapulmonary pressure is less than atmospheric.

Exam 23: The Respiratory System

Which of the following decreases respiratory efficiency?

Severing the sensory fibers from the lungs would result in all of the following except

Which of the following statements about the chloride shift is false?

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

In-Text Figure Based Questions -What type of muscle wraps around a respiratory bronchiole and can change the diameter of the airway? (Figure23-8)

Stimulation of the apneustic center would result in

Tuberculosis results from an infection by the bacterium

Boyle's law of gases states that

Information from chemoreceptors travels to the brain via the ________ nerves.

The normal respiratory rate of a resting adult ranges from ________ breaths each minute, or roughly onefor every four heartbeats.

If the volume of the lungs increases, what happens to the air pressure inside the lungs?

Dalton's law states that

Accidently sending fluid up out of the nose happens when the ________ fails to close off the ________.

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

The airway that connects the larynx to the bronchial tree is the

Contraction of the intrinsic laryngeal muscles can

The ________ is shared by the respiratory and digestive systems.

All of the following provide chemoreceptor input to the respiratory centers of the medulla oblongata except the

The interlobular septa divide the lungs into

When there is no air movement, the relationship between the intrapulmonary and atmospheric pressure is that

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous 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, Nutrition, and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters

Accidently sending fluid up out of the nose happens when the fails to close off the .