Question 1

A baby holding its breath will

Accepted Answer

A)  be termed a "blue baby". 
B)  have brain cells damaged because of low blood oxygen levels. 
C)  suffer heart damage because of increased pressure in the aorta. 
D)  automatically start to breathe when the CO2 levels in the blood reach a high enough value. 
E)  automatically start to breathe when oxygen levels decrease slightly. 
A)  be termed a "blue baby". 
B)  have brain cells damaged because of low blood oxygen levels. 
C)  suffer heart damage because of increased pressure in the aorta. 
D)  automatically start to breathe when the CO2 levels in the blood reach a high enough value. 
E)  automatically start to breathe when oxygen levels decrease slightly.

Question 2

Normally, the partial pressure of oxygen gas is higher in the

Accepted Answer

A)  blood of the pulmonary capillaries. 
B)  bronchioles. 
C)  alveoli. 
D)  venous blood. 
A)  blood of the pulmonary capillaries. 
B)  bronchioles. 
C)  alveoli. 
D)  venous blood.

Question 3

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 4

The thyroid cartilage is part of the __________.

Accepted Answer

The answer of The thyroid cartilage is part of the...

Question 5

Which of the following is mismatched?

Accepted Answer

A)  bronchitis - inflammation of the bronchi 
B)  emphysema - destruction of the alveolar walls 
C)  pulmonary fibrosis - loss of elastic recoil in the lung 
D)  cystic fibrosis - replacement of lung tissue with fibrous connective tissue 
E)  smokers - chronic obstructive pulmonary disease 
A)  bronchitis - inflammation of the bronchi 
B)  emphysema - destruction of the alveolar walls 
C)  pulmonary fibrosis - loss of elastic recoil in the lung 
D)  cystic fibrosis - replacement of lung tissue with fibrous connective tissue 
E)  smokers - chronic obstructive pulmonary disease

Question 6

Which of the following respiratory membrane layers is closest to air in the alveolus?

Accepted Answer

A)  alveolar epithelium 
B)  alveolar basement membrane 
C)  capillary basement membrane 
D)  capillary endothelium 
E)  alveolar fluid (with surfactant) 
A)  alveolar epithelium 
B)  alveolar basement membrane 
C)  capillary basement membrane 
D)  capillary endothelium 
E)  alveolar fluid (with surfactant)

Question 7

Which of the following factors keeps the alveoli expanded?

Accepted Answer

A)  a pneumothorax 
B)  negative pleural pressure 
C)  alveolar pressure being equal to atmospheric pressure 
D)  a reduction in surfactant 
E)  negative intra-alveolar pressure 
A)  a pneumothorax 
B)  negative pleural pressure 
C)  alveolar pressure being equal to atmospheric pressure 
D)  a reduction in surfactant 
E)  negative intra-alveolar pressure

Question 8

Mr. Huff and Puff is getting ready to blow up a pool float because he can't find the air pump. He takes a big breath in after exhaling normally. The air he takes in is the

Accepted Answer

A)  inspiratory reserve volume. 
B)  vital capacity. 
C)  inspiratory capacity. 
D)  tidal volume. 
A)  inspiratory reserve volume. 
B)  vital capacity. 
C)  inspiratory capacity. 
D)  tidal volume.

Question 9

The lungs have

Accepted Answer

A)  one blood flow route and one lymphatic supply. 
B)  two blood flow routes and one lymphatic supply. 
C)  one blood flow route and two lymphatic supplies. 
D)  two blood flow routes and two lymphatic supplies. 
E)  three blood flow routes and one lymphatic supply. 
A)  one blood flow route and one lymphatic supply. 
B)  two blood flow routes and one lymphatic supply. 
C)  one blood flow route and two lymphatic supplies. 
D)  two blood flow routes and two lymphatic supplies. 
E)  three blood flow routes and one lymphatic supply.

Question 10

Mr. Jones has a blood pH of 7.00 and a temperature of 100.5 $\degree$F. His oxygen-hemoglobin dissociation curve would

Accepted Answer

A)  shift to the right, causing more O2 to be released to his cells. 
B)  shift to the left, allowing less O2 to be released to his cells. 
C)  show no change, allowing the O2 concentration to remain stable. 
A)  shift to the right, causing more O2 to be released to his cells. 
B)  shift to the left, allowing less O2 to be released to his cells. 
C)  show no change, allowing the O2 concentration to remain stable.

Question 11

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 12

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 13

During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (Palv) will

Accepted Answer

A)  decrease below atmospheric pressure (P
B) , causing air to move out of his lungs. 
B)  become greater than atmospheric pressure (P
B) , causing air to move into his lungs. 
C)  decrease below atmospheric pressure (P
B) , causing air to move into his lungs. 
D)  become greater than atmospheric pressure (P
B) , causing air to move out of his lungs. 
E)  does not change. 
A)  decrease below atmospheric pressure (P
B) , causing air to move out of his lungs. 
B)  become greater than atmospheric pressure (P
B) , causing air to move into his lungs. 
C)  decrease below atmospheric pressure (P
B) , causing air to move into his lungs. 
D)  become greater than atmospheric pressure (P
B) , causing air to move out of his lungs. 
E)  does not change.

Question 14

Carbon dioxide is more soluble in water than is oxygen. Which gas has the higher rate of diffusion?

Accepted Answer

A)  carbon dioxide 
B)  oxygen 
C)  Both will have the same rate of diffusion 
A)  carbon dioxide 
B)  oxygen 
C)  Both will have the same rate of diffusion

Question 15

When people aspirate liquids or food into their lungs, the liquid or food most commonly enters the right lung rather than the left lung. This is because the right primary bronchus is __________ than the left primary bronchus.

Accepted Answer

A)  longer 
B)  thinner 
C)  more vertical 
D)  less ciliated 
E)  shorter 
A)  longer 
B)  thinner 
C)  more vertical 
D)  less ciliated 
E)  shorter

Question 16

Match the term with the appropriate description, answer with the letter preceding the description.
-hard palate
"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 17

The Hering-Breuer reflex

Accepted Answer

A)  causes erratic respirations. 
B)  helps prevent overinflation of the lungs. 
C)  has its sensory components in the sympathetic nerves. 
D)  is a normal response to increased oxygen content in the blood. 
E)  limits how much air a person can expire. 
A)  causes erratic respirations. 
B)  helps prevent overinflation of the lungs. 
C)  has its sensory components in the sympathetic nerves. 
D)  is a normal response to increased oxygen content in the blood. 
E)  limits how much air a person can expire.

Question 18

Which of the following functions is associated with the nose?

Accepted Answer

A)  initiating the cough reflex 
B)  external respiration 
C)  warming the air 
D)  producing mucus to trap debris from the air 
E)  warming the air and producing mucus to trap debris from the air 
A)  initiating the cough reflex 
B)  external respiration 
C)  warming the air 
D)  producing mucus to trap debris from the air 
E)  warming the air and producing mucus to trap debris from the air

Question 19

Which of the following is NOT a factor that influences the rate of gas diffusion through the respiratory membrane?

Accepted Answer

A)  the partial pressure gradient of the gases 
B)  the thickness of the respiratory membrane 
C)  the diffusion coefficient of the gases 
D)  the temperature of the gases 
E)  the surface area of the membrane 
A)  the partial pressure gradient of the gases 
B)  the thickness of the respiratory membrane 
C)  the diffusion coefficient of the gases 
D)  the temperature of the gases 
E)  the surface area of the membrane

Question 20

During exercise, ventilation initially increases due to

Accepted Answer

A)  increased blood carbon dioxide levels stimulating baroreceptors. 
B)  decreased blood oxygen levels stimulating chemoreceptors. 
C)  decreased blood pH levels stimulating baroreceptors. 
D)  limb movements that stimulate the respiratory center. 
E)  abrupt changes in metabolism or blood gases. 
A)  increased blood carbon dioxide levels stimulating baroreceptors. 
B)  decreased blood oxygen levels stimulating chemoreceptors. 
C)  decreased blood pH levels stimulating baroreceptors. 
D)  limb movements that stimulate the respiratory center. 
E)  abrupt changes in metabolism or blood gases.

Exam 23: Respiratory System

A baby holding its breath will

Normally, the partial pressure of oxygen gas is higher in the

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

The thyroid cartilage is part of the __________.

Which of the following is mismatched?

Which of the following respiratory membrane layers is closest to air in the alveolus?

Which of the following factors keeps the alveoli expanded?

Mr. Huff and Puff is getting ready to blow up a pool float because he can't find the air pump. He takes a big breath in after exhaling normally. The air he takes in is the

The lungs have

Mr. Jones has a blood pH of 7.00 and a temperature of 100.5 °\degree° F. His oxygen-hemoglobin dissociation curve would

When carbon dioxide levels in the blood increase, the

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

During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (Palv) will

Carbon dioxide is more soluble in water than is oxygen. Which gas has the higher rate of diffusion?

When people aspirate liquids or food into their lungs, the liquid or food most commonly enters the right lung rather than the left lung. This is because the right primary bronchus is __________ than the left primary bronchus.

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

The Hering-Breuer reflex

Which of the following functions is associated with the nose?

Which of the following is NOT a factor that influences the rate of gas diffusion through the respiratory membrane?

During exercise, ventilation initially increases due to

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

Filters

Mr. Jones has a blood pH of 7.00 and a temperature of 100.5 $\degree$ F. His oxygen-hemoglobin dissociation curve would

During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (P_alv) will