Question 1

A newborn infant is found dead,abandoned by the road.Among the many questions that the police would like to have answered is whether the infant was born dead or alive.After an autopsy,the medical examiner tells them that the infant was dead at birth.How could the medical examiner determine this?

Accepted Answer

Unless the infant was suffocated immedia...

Question 2

Normal interstitial fluid has a  of 40 mm Hg and  of 45 mm Hg.As a result,

Accepted Answer

A)   both oxygen and carbon dioxide diffuse into the capillaries.
B)   both oxygen and carbon dioxide diffuse out of the capillaries.
C)   no diffusion occurs.
D)   oxygen diffuses out of the capillaries and carbon dioxide diffuses in.
E)   oxygen diffuses into the capillaries and carbon dioxide diffuses out.

Question 3

The removal of pleural fluid for diagnostic purposes is called

Accepted Answer

A)   pneumotachometry.
B)   pneumothorax.
C)   spirometry.
D)   thoracentesis.
E)   amniocentesis.

Question 4

The adjustment of respiratory rate due to blood pressure rising and falling results from the stimulation or inhibition of the respiratory centers by sensory fibers in which cranial nerve(s) ?

Accepted Answer

A)   vagus (X)  and accessory (XI) 
B)   hypoglossal (XII)  only
C)   glossopharyngeal (IX)  and vagus (X) 
D)   vagus (X)  and hypoglossal (XII) 
E)   glossopharyngeal (IX)  and hypoglossal (XII)

Question 5

Identify the most common lethal inherited disease affecting Caucasians of Northern European descent that results from a defective gene located on chromosome 7.

Accepted Answer

A)   asthma
B)   emphysema
C)   pneumothorax
D)   pneumonia
E)   cystic fibrosis

Question 6

Which of the following is defined as the maximum amount of air that can be moved into and out of the respiratory system in a single respiratory cycle?

Accepted Answer

A)   vital capacity
B)   inspiratory reserve volume
C)   tidal volume
D)   expiratory reserve volume
E)   residual volume

Question 7

The lamina propria of the respiratory mucosa consists of which of the following connective tissues?

Accepted Answer

A)   reticular
B)   adipose
C)   dense fibrous
D)   areolar
E)   elastic

Question 8

The following is a list of some of the structures of the respiratory tree: 1.secondary bronchi
2) tertiary bronchi
3) bronchioles
4) primary bronchi
The order in which air passes through these structures beginning at the trachea is

Accepted Answer

A)   4, 1, 2, 3.
B)   3, 2, 1, 4.
C)   2, 3, 1, 4.
D)   4, 1, 3, 2.
E)   1, 2, 3, 4.

Question 9

The nasal cavity opens into the nasopharynx at the

Accepted Answer

A)   internal nares.
B)   external nares.
C)   vestibules.
D)   turbinates.
E)   palates.

Question 10

The enzyme carbonic anhydrase causes what to occur in RBCs?

Accepted Answer

A)   carbon dioxide to be converted to carbonic acid
B)   carbon dioxide to be converted to water
C)   water to be converted to oxygen and carbon dioxide
D)   water to react with hydrogen ions
E)   carbonic acid to be converted to hemoglobin

Question 11

Pulmonary ventilation refers to

Accepted Answer

A)   the movement of air into and out of the lungs.
B)   the movement of dissolved gases from the alveoli to the blood.
C)   the movement of dissolved gases from the blood to the interstitial space.
D)   the movement of dissolved gases from the interstitial space to the cells.
E)   the utilization of oxygen.

Question 12

Which statement regarding carbon dioxide transport in the blood is true?

Accepted Answer

A)   The chloride shift occurs when Cl⁻ moves out of RBCs in exchange for HCO₃⁻.
B)   HCO₃⁻ dissociates into CO₂ and O₂.
C)   25% is converted to H₂CO₃ by carbonic anhydrase.
D)   H₂CO₃ dissociates into H⁺ and HCO₃⁻.
E)   93% remains dissolved in plasma as CO₂.

Question 13

Which statement regarding respiration is true?

Accepted Answer

A)   The sternocleidomastoid muscle elevates the rib cage.
B)   Internal intercostal muscles elevate the rib cage.
C)   The rectus abdominis muscle elevates the rib cage.
D)   The external intercostal muscles lower the rib cage.
E)   Elevation of the rib cage decreases the volume of the thoracic cavity.

Question 14

Contraction of which muscle normally accounts for around 75% of the air movement in normal quiet breathing?

Accepted Answer

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

Question 15

Figure 15-1 Components of the Respiratory System
Use Figure 15-1 to identify the labeled part.
-Label A represents which structure(s) ?

Accepted Answer

A)   bronchus
B)   larynx
C)   esophagus
D)   trachea
E)   pharynx

Question 16

The term ________ refers to an increase in the  of arterial blood.

Accepted Answer

A)   hyperventilation
B)   hypoventilation
C)   hypocapnia
D)   hypercapnia
E)   hypoglycemia

Question 17

Figure 15-1 Components of the Respiratory System
Use Figure 15-1 to identify the labeled part.
-Label H represents which structure(s) ?

Accepted Answer

A)   bronchus
B)   larynx
C)   esophagus
D)   trachea
E)   pharynx

Question 18

The palatine tonsils lie in the lateral walls of the

Accepted Answer

A)   oropharynx.
B)   nasal vestibule.
C)   larynx.
D)   esophagus.
E)   laryngopharynx.

Question 19

How many tertiary bronchi are typically present in each lung?

Accepted Answer

A)   1-2
B)   3-4
C)   9-10
D)   15-20
E)   20-25

Question 20

The DRG contains neurons that control the

Accepted Answer

A)   external oblique and internal intercostal muscles.
B)   rectus abdominis and external intercostal muscles.
C)   external intercostal muscles and diaphragm.
D)   internal intercostal muscles and diaphragm.
E)   internal oblique and internal intercostal muscles.

Exam 15: The Respiratory System

Which statement regarding respiration is true?

Correct AnswerverifiedShow Answer

The lamina propria of the respiratory mucosa consists of which of the following connective tissues?

Correct AnswerverifiedShow Answer

The palatine tonsils lie in the lateral walls of the

Correct AnswerverifiedShow Answer

Which statement regarding carbon dioxide transport in the blood is true?

Correct AnswerverifiedShow Answer

A newborn infant is found dead,abandoned by the road.Among the many questions that the police would like to have answered is whether the infant was born dead or alive.After an autopsy,the medical examiner tells them that the infant was dead at birth.How could the medical examiner determine this?

Correct AnswerverifiedUnless the infant was suffocated immedia...View AnswerShow Answer

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label A represents which structure(s) ?

Correct AnswerverifiedShow Answer

The adjustment of respiratory rate due to blood pressure rising and falling results from the stimulation or inhibition of the respiratory centers by sensory fibers in which cranial nerve(s) ?

Correct AnswerverifiedShow Answer

The removal of pleural fluid for diagnostic purposes is called

Correct AnswerverifiedShow Answer

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label H represents which structure(s) ?

Correct AnswerverifiedShow Answer

Identify the most common lethal inherited disease affecting Caucasians of Northern European descent that results from a defective gene located on chromosome 7.

Correct AnswerverifiedShow Answer

The following is a list of some of the structures of the respiratory tree: 1.secondary bronchi 2) tertiary bronchi 3) bronchioles 4) primary bronchi The order in which air passes through these structures beginning at the trachea is

Correct AnswerverifiedShow Answer

Pulmonary ventilation refers to

Correct AnswerverifiedShow Answer

The enzyme carbonic anhydrase causes what to occur in RBCs?

Correct AnswerverifiedShow Answer

Contraction of which muscle normally accounts for around 75% of the air movement in normal quiet breathing?

Correct AnswerverifiedShow Answer

The DRG contains neurons that control the

Correct AnswerverifiedShow Answer

Normal interstitial fluid has a of 40 mm Hg and of 45 mm Hg.As a result,

Correct AnswerverifiedShow Answer

Which of the following is defined as the maximum amount of air that can be moved into and out of the respiratory system in a single respiratory cycle?

Correct AnswerverifiedShow Answer

The nasal cavity opens into the nasopharynx at the

Correct AnswerverifiedShow Answer

The term ________ refers to an increase in the of arterial blood.

Correct AnswerverifiedShow Answer

How many tertiary bronchi are typically present in each lung?

Correct AnswerverifiedShow Answer

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Unless the infant was suffocated immedia...
View Answer

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