Question 1

The portion of the pharynx that receives both air and food is the

Accepted Answer

A) nasopharynx. 
B) oropharynx. 
C) laryngopharynx. 
D) aeropharynx. 
E) internal pharynx. 
A) nasopharynx. 
B) oropharynx. 
C) laryngopharynx. 
D) aeropharynx. 
E) internal pharynx.

Question 2

An acute infection of the throat that can lead to swelling and closure of the glottis and cause suffocation is known as

Accepted Answer

A) laryngitis. 
B) laryngospasm. 
C) acute epiglottitis. 
D) strep throat. 
E) acute pharyngitis. 
A) laryngitis. 
B) laryngospasm. 
C) acute epiglottitis. 
D) strep throat. 
E) acute pharyngitis.

Question 3

The movement of chloride ions into the RBCs in exchange for bicarbonate ions is known as the ________.

Accepted Answer

The answer of The movement of chloride ions into the...

Question 4

Expiratory movements are produced by contraction of the ________ muscle.

Accepted Answer

A) scalene 
B) diaphragm 
C) internal intercostal 
D) external intercostal 
E) serratus anterior 
A) scalene 
B) diaphragm 
C) internal intercostal 
D) external intercostal 
E) serratus anterior

Question 5

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.

Question 6

Increasing the alveolar ventilation rate will

Accepted Answer

A) decrease the partial pressure of carbon dioxide in the alveoli. 
B) decrease the rate of oxygen diffusion from the alveoli to the blood. 
C) increase the partial pressure of carbon dioxide in the alveoli. 
D) decrease the rate of carbon dioxide diffusion from the blood to the alveoli. 
E) hardly affect either the partial pressure or diffusion of gases. 
A) decrease the partial pressure of carbon dioxide in the alveoli. 
B) decrease the rate of oxygen diffusion from the alveoli to the blood. 
C) increase the partial pressure of carbon dioxide in the alveoli. 
D) decrease the rate of carbon dioxide diffusion from the blood to the alveoli. 
E) hardly affect either the partial pressure or diffusion of gases.

Question 7

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 8

The largest cartilage of the larynx is the ________ cartilage.

Accepted Answer

A) thyroid 
B) cricoid 
C) cuneiform 
D) arytenoid 
E) epiglottic 
A) thyroid 
B) cricoid 
C) cuneiform 
D) arytenoid 
E) epiglottic

Question 9

Figure 23-2 Mechanics of Ventilation
Use Figure 23-2 to answer the following question:
-What is the relationship between the pressures at label "3"?

Accepted Answer

A) P outside = P inside B) P outside > P inside C) P outside < P inside D) P outside + P inside E) P outside - P inside A) P outside = P inside B) P outside > P inside C) P outside < P inside D) P outside + P inside E) P outside - P inside

Question 10

Which respiratory organ(s)has a cardiac notch?

Accepted Answer

A) right lung 
B) left lung 
C) right primary bronchus 
D) left primary bronchus 
E) both the right and the left lungs 
A) right lung 
B) left lung 
C) right primary bronchus 
D) left primary bronchus 
E) both the right and the left lungs

Question 11

The partial pressure of carbon dioxide in venous blood 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 12

Physical damage to the lamina propria of the nasal mucosa is likely to result in

Accepted Answer

A) epistaxis. 
B) nasal congestion. 
C) nosebleeds. 
D) a deviated septum. 
E) epistaxis or nosebleeds. 
A) epistaxis. 
B) nasal congestion. 
C) nosebleeds. 
D) a deviated septum. 
E) epistaxis or nosebleeds.

Question 13

Tension on the vocal cords is regulated by the

Accepted Answer

A) movement of the arytenoid cartilages. 
B) extrinsic ligaments. 
C) contraction of laryngeal muscles. 
D) movement of the arytenoid cartilages and contraction of laryngeal muscles. 
E) extrinsic and intrinsic ligaments. 
A) movement of the arytenoid cartilages. 
B) extrinsic ligaments. 
C) contraction of laryngeal muscles. 
D) movement of the arytenoid cartilages and contraction of laryngeal muscles. 
E) extrinsic and intrinsic ligaments.

Question 14

________ involves active inspiratory and expiratory movements and calls on accessory muscles to assist with inhalation,while exhalation involves contraction of the internal intercostal muscles and sometimes abdominal muscles too.

Accepted Answer

A) Eupnea 
B) Forced breathing 
C) Costal breathing 
D) Vital breathing 
E) Passive breathing 
A) Eupnea 
B) Forced breathing 
C) Costal breathing 
D) Vital breathing 
E) Passive breathing

Question 15

What are the primary functions of the respiratory system?

Accepted Answer

(1)Provide an extensive area for gas exc

Question 16

The larynx,trachea,bronchi,and bronchioles all make up the

Accepted Answer

A) upper respiratory tract. 
B) lower respiratory tract. 
C) internal respiratory tract. 
D) alveoli of the respiratory tract. 
E) respiratory mucosa. 
A) upper respiratory tract. 
B) lower respiratory tract. 
C) internal respiratory tract. 
D) alveoli of the respiratory tract. 
E) respiratory mucosa.

Question 17

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 18

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 19

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

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 20

Figure 23-1 The Upper Airways
Use Figure 23-1 to answer the following question:
-What is the function of the structure labeled "8"?

Accepted Answer

A) forces air into the lungs 
B) causes air to swirl within the respiratory passageway 
C) prevents food from entering the larynx 
D) acts like a supplementary air pump 
E) prevents food from entering the pharynx 
A) forces air into the lungs 
B) causes air to swirl within the respiratory passageway 
C) prevents food from entering the larynx 
D) acts like a supplementary air pump 
E) prevents food from entering the pharynx

Exam 23: The Respiratory System

The portion of the pharynx that receives both air and food is the

An acute infection of the throat that can lead to swelling and closure of the glottis and cause suffocation is known as

The movement of chloride ions into the RBCs in exchange for bicarbonate ions is known as the ________.

Expiratory movements are produced by contraction of the ________ muscle.

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

Increasing the alveolar ventilation rate will

The most important chemical regulator of respiration is

The largest cartilage of the larynx is the ________ cartilage.

Figure 23-2 Mechanics of Ventilation Use Figure 23-2 to answer the following question: -What is the relationship between the pressures at label "3"?

Which respiratory organ(s)has a cardiac notch?

The partial pressure of carbon dioxide in venous blood is approximately

Physical damage to the lamina propria of the nasal mucosa is likely to result in

Tension on the vocal cords is regulated by the

________ involves active inspiratory and expiratory movements and calls on accessory muscles to assist with inhalation,while exhalation involves contraction of the internal intercostal muscles and sometimes abdominal muscles too.

What are the primary functions of the respiratory system?

The larynx,trachea,bronchi,and bronchioles all make up the

The interlobular septa divide the lungs into

Stimulation of the apneustic center would result in

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

Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following question: -What is the function of the structure labeled "8"?

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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