Question 1

What are the primary functions of the respiratory system?

Accepted Answer

(1)Provide an extensive area for gas exc

Question 2

If the dorsal respiratory group of neurons in the medulla oblongata were destroyed bilaterally,

Accepted Answer

A) a person would stop breathing. 
B) pulmonary ventilation would increase markedly. 
C) the respiratory minute volume would increase. 
D) tidal volumes would decrease. 
E) alveolar ventilation would increase. 
A) a person would stop breathing. 
B) pulmonary ventilation would increase markedly. 
C) the respiratory minute volume would increase. 
D) tidal volumes would decrease. 
E) alveolar ventilation would increase.

Question 3

Use of the accessory respiratory muscles is characteristic of forced breathing,or

Accepted Answer

A) hyperpnea. 
B) eupnea. 
C) dyspnea. 
D) hypoxia. 
E) apnea. 
A) hyperpnea. 
B) eupnea. 
C) dyspnea. 
D) hypoxia. 
E) apnea.

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

The most important chemical regulator of respiration is

Accepted Answer

A) oxygen. 
B) carbon dioxide. 
C) bicarbonate ion. 
D) sodium ion. 
E) hemoglobin. 
A) oxygen. 
B) carbon dioxide. 
C) bicarbonate ion. 
D) sodium ion. 
E) hemoglobin.

Question 6

Under quiet conditions,blood returning to the heart retains about ________ of its oxygen content.

Accepted Answer

A) 25 percent 
B) 50 percent 
C) 75 percent 
D) 90 percent 
E) 100 percent 
A) 25 percent 
B) 50 percent 
C) 75 percent 
D) 90 percent 
E) 100 percent

Question 7

The most superior portion of the lung is called the

Accepted Answer

A) base. 
B) apex. 
C) cardiac notch. 
D) hilus. 
E) epipleurium. 
A) base. 
B) apex. 
C) cardiac notch. 
D) hilus. 
E) epipleurium.

Question 8

Sympathetic input to the smooth muscle tissue in bronchioles causes all of the following except

Accepted Answer

A) bronchoconstriction. 
B) a bigger lumen. 
C) less airway resistance. 
D) activation of beta-two receptors. 
E) relaxation. 
A) bronchoconstriction. 
B) a bigger lumen. 
C) less airway resistance. 
D) activation of beta-two receptors. 
E) relaxation.

Question 9

Higher brain centers that alter the activity of the respiratory centers include all of the following except

Accepted Answer

A) cortical association areas. 
B) the precentral motor gyrus. 
C) the limbic system. 
D) the hypothalamus. 
E) Broca's center. 
A) cortical association areas. 
B) the precentral motor gyrus. 
C) the limbic system. 
D) the hypothalamus. 
E) Broca's center.

Question 10

________ is the amount of air that moves into the respiratory system during a single respiratory cycle.

Accepted Answer

A) Residual volume 
B) Expiratory reserve volume 
C) Inspiratory reserve volume 
D) Tidal volume 
E) Inspiratory capacity 
A) Residual volume 
B) Expiratory reserve volume 
C) Inspiratory reserve volume 
D) Tidal volume 
E) Inspiratory capacity

Question 11

What is hypercapnia? How does it affect respiration? What are common causes?

Accepted Answer

Hypercapnia refers to a condition of ele

Question 12

A unique feature of the left lung is the

Accepted Answer

A) hilum. 
B) carina. 
C) primary bronchus. 
D) cardiac notch. 
E) apex. 
A) hilum. 
B) carina. 
C) primary bronchus. 
D) cardiac notch. 
E) apex.

Question 13

The thyroid cartilage is attached to the cricoid cartilage by the

Accepted Answer

A) intrinsic ligaments. 
B) extrinsic ligaments. 
C) vestibular folds. 
D) cricothyroid ligament. 
E) intrinsic laryngeal muscles. 
A) intrinsic ligaments. 
B) extrinsic ligaments. 
C) vestibular folds. 
D) cricothyroid ligament. 
E) intrinsic laryngeal muscles.

Question 14

The openings to the nasal cavity are the

Accepted Answer

A) external nares. 
B) internal nares. 
C) nasal meatuses. 
D) nasal conchae. 
E) nasal sinuses. 
A) external nares. 
B) internal nares. 
C) nasal meatuses. 
D) nasal conchae. 
E) nasal sinuses.

Question 15

________ is the most common lethal inherited disease affecting individuals of Northern European descent.

Accepted Answer

A) MRSA 
B) Congestive heart failure 
C) Cystic fibrosis 
D) Myasthenia gravis 
E) Parkinson's disease 
A) MRSA 
B) Congestive heart failure 
C) Cystic fibrosis 
D) Myasthenia gravis 
E) Parkinson's disease

Question 16

Low partial pressure of oxygen in tissues is a condition called

Accepted Answer

A) asthma. 
B) emphysema. 
C) hypoxia. 
D) ischemia. 
E) lung cancer. 
A) asthma. 
B) emphysema. 
C) hypoxia. 
D) ischemia. 
E) lung cancer.

Question 17

The term ________ describes the result from an injury that permits air to leak into the intrapleural space.

Accepted Answer

A) pleurisy 
B) pneumonia 
C) pneumothorax 
D) pulmonary edema 
E) emphysema 
A) pleurisy 
B) pneumonia 
C) pneumothorax 
D) pulmonary edema 
E) emphysema

Question 18

The palatine tonsils lie in the walls of the

Accepted Answer

A) nasopharynx. 
B) oropharynx. 
C) laryngopharynx. 
D) larynx. 
E) nasal cavity. 
A) nasopharynx. 
B) oropharynx. 
C) laryngopharynx. 
D) larynx. 
E) nasal cavity.

Question 19

A common site to place a tracheostomy tube is through the ligament that connects the cricoid cartilage to the ________ cartilage.

Accepted Answer

A) thyroid 
B) cuneiform 
C) corniculate 
D) epiglottic 
E) vestibular 
A) thyroid 
B) cuneiform 
C) corniculate 
D) epiglottic 
E) vestibular

Question 20

What occurs if intrapulmonic pressure is 763 mm Hg?

Accepted Answer

A) hyperventilation 
B) exhalation 
C) pause in breathing 
D) apnea 
E) inhalation 
A) hyperventilation 
B) exhalation 
C) pause in breathing 
D) apnea 
E) inhalation

Exam 23: The Respiratory System

What are the primary functions of the respiratory system?

If the dorsal respiratory group of neurons in the medulla oblongata were destroyed bilaterally,

Use of the accessory respiratory muscles is characteristic of forced breathing,or

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

The most important chemical regulator of respiration is

Under quiet conditions,blood returning to the heart retains about ________ of its oxygen content.

The most superior portion of the lung is called the

Sympathetic input to the smooth muscle tissue in bronchioles causes all of the following except

Higher brain centers that alter the activity of the respiratory centers include all of the following except

________ is the amount of air that moves into the respiratory system during a single respiratory cycle.

What is hypercapnia? How does it affect respiration? What are common causes?

A unique feature of the left lung is the

The thyroid cartilage is attached to the cricoid cartilage by the

The openings to the nasal cavity are the

________ is the most common lethal inherited disease affecting individuals of Northern European descent.

Low partial pressure of oxygen in tissues is a condition called

The term ________ describes the result from an injury that permits air to leak into the intrapleural space.

The palatine tonsils lie in the walls of the

A common site to place a tracheostomy tube is through the ligament that connects the cricoid cartilage to the ________ cartilage.

What occurs if intrapulmonic pressure is 763 mm Hg?

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

Joints

Muscle Tissue

The Muscular System

Neural 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 and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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