Question 1

Dalton's Law of gases relates to:

Accepted Answer

A) partial pressure of a gas in a mixture of gases 
B) temperature and pressure of gases 
C) solubility of gases 
D) gas pressure and saturation of hemoglobin 
E) volume and gas pressure 
A) partial pressure of a gas in a mixture of gases 
B) temperature and pressure of gases 
C) solubility of gases 
D) gas pressure and saturation of hemoglobin 
E) volume and gas pressure

Question 2

The percent of oxygen saturation of hemoglobin when the pH is 7.6 is

Accepted Answer

A) greater than the percent of oxygen saturation of hemoglobin when the pH is 7.2. 
B) less than the percent of oxygen saturation of hemoglobin when the pH is 7.2. 
C) equal to the percent of oxygen saturation of hemoglobin when the pH is 7.2. 
A) greater than the percent of oxygen saturation of hemoglobin when the pH is 7.2. 
B) less than the percent of oxygen saturation of hemoglobin when the pH is 7.2. 
C) equal to the percent of oxygen saturation of hemoglobin when the pH is 7.2.

Question 3

Ralph is taking scuba diving classes,and is warned not to hold his breath when ascending from depth but to continuously release air from his mouth.What is the basis of this instruction and what is the risk if it is ignored?

Accepted Answer

When breathing underwater with scuba equ

Question 4

The nasal cavity,pharynx,and larynx constitute the ________ portion of the airway.

Accepted Answer

A) conducting 
B) exchange 
C) respiratory 
D) sinus 
E) primary 
A) conducting 
B) exchange 
C) respiratory 
D) sinus 
E) primary

Question 5

Which of the following muscles might be recruited to increase inspired volume?

Accepted Answer

A) sternocleidomastoid 
B) pectoralis minor 
C) scalenes 
D) serratus anterior 
E) All of the answers are correct. 
A) sternocleidomastoid 
B) pectoralis minor 
C) scalenes 
D) serratus anterior 
E) All of the answers are correct.

Question 6

Henry'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 7

Pneumotaxic centers in the pons

Accepted Answer

A) inhibit the apneustic centers. 
B) promote passive or active exhalation. 
C) receive input from the hypothalamus and cerebrum. 
D) modify respiratory rate and depth. 
E) All of the answers are correct. 
A) inhibit the apneustic centers. 
B) promote passive or active exhalation. 
C) receive input from the hypothalamus and cerebrum. 
D) modify respiratory rate and depth. 
E) All of the answers are correct.

Question 8

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 9

Figure 23-2 Mechanics of Ventilation
Use Figure 23-2 to answer the following question:
-Which muscle(s)contract(s)to cause the movement indicated by the arrows labeled "6" and "7"?

Accepted Answer

A) rectus abdominis 
B) internal intercostals 
C) external intercostals 
D) diaphragm 
E) both rectus abdominis and internal intercostals 
A) rectus abdominis 
B) internal intercostals 
C) external intercostals 
D) diaphragm 
E) both rectus abdominis and internal intercostals

Question 10

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 11

The conchae

Accepted Answer

A) divide the nasal cavity into a right and a left side. 
B) provide an opening into the pharynx. 
C) provide a surface for the sense of smell. 
D) create turbulence in the air to trap particulate matter in mucus. 
E) provide an opening to paranasal sinuses. 
A) divide the nasal cavity into a right and a left side. 
B) provide an opening into the pharynx. 
C) provide a surface for the sense of smell. 
D) create turbulence in the air to trap particulate matter in mucus. 
E) provide an opening to paranasal sinuses.

Question 12

Prolonged inspirations can result from stimulating the ________ center.

Accepted Answer

A) apneustic 
B) pneumotaxic 
C) expiratory 
D) baroreceptor 
E) chemoreceptor 
A) apneustic 
B) pneumotaxic 
C) expiratory 
D) baroreceptor 
E) chemoreceptor

Question 13

Secondary bronchi supply air to the

Accepted Answer

A) lungs. 
B) lobes of the lungs. 
C) lobules of the lungs. 
D) alveoli. 
E) alveolar ducts. 
A) lungs. 
B) lobes of the lungs. 
C) lobules of the lungs. 
D) alveoli. 
E) alveolar ducts.

Question 14

A newborn infant is found dead,abandoned by the road.Among the many questions that the police would like answered is whether the infant was stillborn.How could the medical examiner tell?

Accepted Answer

If the infant had been born alive,its fi

Question 15

When the diaphragm and external intercostal muscles contract,

Accepted Answer

A) the volume of the thorax increases. 
B) the volume of the thorax decreases. 
C) the volume of the lungs decreases. 
D) the lungs shrink. 
E) expiration occurs. 
A) the volume of the thorax increases. 
B) the volume of the thorax decreases. 
C) the volume of the lungs decreases. 
D) the lungs shrink. 
E) expiration occurs.

Question 16

Air passing through the glottis vibrates the vocal folds and produces

Accepted Answer

A) speech. 
B) articulation. 
C) phonation. 
D) whistling. 
E) ululation. 
A) speech. 
B) articulation. 
C) phonation. 
D) whistling. 
E) ululation.

Question 17

The respiratory mucosa consists of

Accepted Answer

A) epithelium and underlying layer of areolar tissue. 
B) dense irregular connective. 
C) stratified squamous cells. 
D) fibrocartilage. 
E) All of the answers are correct. 
A) epithelium and underlying layer of areolar tissue. 
B) dense irregular connective. 
C) stratified squamous cells. 
D) fibrocartilage. 
E) All of the answers are correct.

Question 18

The ________ branch from the trachea at the carina.

Accepted Answer

A) terminal bronchioles 
B) secondary bronchi 
C) tertiary bronchi 
D) primary bronchi 
E) alveolar ducts 
A) terminal bronchioles 
B) secondary bronchi 
C) tertiary bronchi 
D) primary bronchi 
E) alveolar ducts

Question 19

During a choking episode,most foreign objects are lodged in the ________ bronchus due to its larger diameter and steeper angle.

Accepted Answer

A) right primary 
B) left primary 
C) right secondary 
D) left secondary 
E) medial 
A) right primary 
B) left primary 
C) right secondary 
D) left secondary 
E) medial

Question 20

Components of the upper respiratory system include all of the following,except the

Accepted Answer

A) lips. 
B) nose. 
C) nasal cavity. 
D) pharynx. 
E) paranasal sinuses. 
A) lips. 
B) nose. 
C) nasal cavity. 
D) pharynx. 
E) paranasal sinuses.

Exam 23: The Respiratory System

Dalton's Law of gases relates to:

The percent of oxygen saturation of hemoglobin when the pH is 7.6 is

Ralph is taking scuba diving classes,and is warned not to hold his breath when ascending from depth but to continuously release air from his mouth.What is the basis of this instruction and what is the risk if it is ignored?

The nasal cavity,pharynx,and larynx constitute the ________ portion of the airway.

Which of the following muscles might be recruited to increase inspired volume?

Henry's law states that

Pneumotaxic centers in the pons

Contraction of the intrinsic laryngeal muscles can

Figure 23-2 Mechanics of Ventilation Use Figure 23-2 to answer the following question: -Which muscle(s)contract(s)to cause the movement indicated by the arrows labeled "6" and "7"?

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

The conchae

Prolonged inspirations can result from stimulating the ________ center.

Secondary bronchi supply air to the

A newborn infant is found dead,abandoned by the road.Among the many questions that the police would like answered is whether the infant was stillborn.How could the medical examiner tell?

When the diaphragm and external intercostal muscles contract,

Air passing through the glottis vibrates the vocal folds and produces

The respiratory mucosa consists of

The ________ branch from the trachea at the carina.

During a choking episode,most foreign objects are lodged in the ________ bronchus due to its larger diameter and steeper angle.

Components of the upper respiratory system include all of the following,except the

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

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

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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