Question 1

Which center stimulates inspiration by increasing the activity of the dorsal respiratory group (DRG) ?

Accepted Answer

A)  Apneustic center
B)  Pulmonary center
C)  Pneumotaxic center
D)  Respiratory centerE) A) and B)
F) A) and C)

Question 2

Contraction of these muscles depresses the ribs,but only during forced exhalation.

Accepted Answer

A)  External intercostals
B)  Scalenes
C)  Transversus thoracis
D)  Internal intercostals
E)  Serratus posterior inferiorF) A) and C)
G) B) and C) D

Question 3

With respect to the control of ventilation,which brain region stimulates the internal intercostal muscles to contract,causing forced exhalation?

Accepted Answer

A)  Dorsal respiratory group (DRG) 
B)  Ventral respiratory group (VRG) 
C)  Apneustic area
D)  Pneumotaxic area
E)  Pleurotaxic areaF) C) and D)
G) A) and B)

Question 4

By following Boyle's law,air flows from a region of lower pressure (the atmosphere)into a region of higher pressure within the lungs.

Accepted Answer

A) True 
 B)False

Question 5

The alveolar cell that secretes pulmonary surfactant is the

Accepted Answer

A)  alveolar type II cell.
B)  alveolar type I cell.
C)  alveolar macrophages.
D)  dust cells.
E)  squamous alveolar cell.F) B) and E)
G) B) and D)

Question 6

Primitive alveoli begin to develop profusely in the embryo around the

Accepted Answer

A)  8th week.
B)  18th week.
C)  28th week.
D)  time of birth.E) C) and D)
F) All of the above

Question 7

-In these views of the trachea,what structure does number 2 indicate?

Accepted Answer

A)  Trachealis muscle
B)  Pseudostratified ciliated columnar epithelium
C)  Tracheal cartilage
D)  Anular ligament
E)  CarinaF) C) and D)
G) A) and C)

Question 8

What structure connects the larynx to the primary bronchi?

Accepted Answer

A)  Trachea
B)  Pharynx
C)  Esophagus
D)  Bronchioles
E)  Alveolar ductsF) A) and B)
G) A) and C)

Question 9

The left primary bronchus is shorter,wider,and more vertically oriented than the right primary bronchus.

Accepted Answer

A) True 
 B)False  False

Question 10

Which statement is regarding the oropharynx?

Accepted Answer

A)  It houses the paired palatine tonsils.
B)  It is located posterior to the oral cavity.
C)  It houses the lingual tonsils.
D)  It houses the pharyngeal tonsil.
E)  It extends from the soft palate to the level of the hyoid bone.F) A) and E)
G) D) and E)

Question 11

-In these views of the larynx,what structure does number 4 indicate?

Accepted Answer

A)  Tracheal cartilage
B)  Thyroid cartilage
C)  Arytenoid cartilage
D)  Cricoid cartilage
E)  Corniculate cartilageF) A) and C)
G) C) and E)

Question 12

Select all that are in the medulla oblongata. 
____ Ventral respiratory group
____ Dorsal respiratory group
_____ Pneumotaxic group
_____ Pontine respiratory center
_____ Peripheral chemoreceptors

Accepted Answer

__X__ Ventral respiratory grou...

Question 13

Which center inhibits the activity of the dorsal respiratory group (DRG) ?

Accepted Answer

A)  Apneustic center
B)  Pulmonary center
C)  Pneumotaxic center
D)  Respiratory centerE) C) and D)
F) All of the above

Question 14

Which statement is true regarding the location of the trachea?

Accepted Answer

A)  It lies superior to the esophagus,inferior to the larynx,and superior to the primary bronchi of the lungs.
B)  It lies posterior to the esophagus,inferior to the larynx,and superior to the primary bronchi of the lungs.
C)  It lies anterior to the esophagus,inferior to the larynx,and inferior to the primary bronchi of the lungs.
D)  It lies anterior to the esophagus,inferior to the larynx,and superior to the primary bronchi of the lungs.
E)  It lies superior to the esophagus,superior to the larynx,and superior to the primary bronchi of the lungs.F) A) and D)
G) B) and D)

Question 15

What structures actually produce sound?

Accepted Answer

A)  Vestibular folds
B)  Paranasal sinuses
C)  Arytenoid cartilages
D)  Vestibular ligaments
E)  Vocal foldsF) A) and C)
G) A) and E)

Question 16

What structure is also known as the "voice box"?

Accepted Answer

A)  Larynx
B)  Pharynx
C)  Esophagus
D)  Bronchus
E)  TracheaF) A) and B)
G) A) and C)

Question 17

Each lung consists of a number of segments called

Accepted Answer

A)  alveolar segments.
B)  bronchopulmonary segments.
C)  mesothelial segments.
D)  pleural segments.
E)  systemic segments.F) All of the above
G) A) and E) B

Question 18

How long is the average trachea?

Accepted Answer

A)  12-14 inches
B)  12-14 cm
C)  12-14 mmD) All of the above
E) B) and C)

Question 19

Foreign particles

Accepted Answer

A)  are more likely to lodge in the right primary bronchus.
B)  are more likely to lodge in the left primary bronchus.
C)  can lodge equally in either the right or left bronchi.D) All of the above
E) B) and C)

Question 20

The rate and depth of breathing is regulated by the _____ center.

Accepted Answer

A)  apneustic
B)  pulmonary
C)  pneumotaxic
D)  respiratory rhythmicityE) A) and B)
F) A) and C)

Exam 25: Respiratory System

Which center stimulates inspiration by increasing the activity of the dorsal respiratory group (DRG) ?

Correct AnswerverifiedShow Answer

Contraction of these muscles depresses the ribs,but only during forced exhalation.

Correct AnswerverifiedD

With respect to the control of ventilation,which brain region stimulates the internal intercostal muscles to contract,causing forced exhalation?

Correct AnswerverifiedShow Answer

By following Boyle's law,air flows from a region of lower pressure (the atmosphere)into a region of higher pressure within the lungs.

Correct AnswerverifiedShow Answer

The alveolar cell that secretes pulmonary surfactant is the

Correct AnswerverifiedShow Answer

Primitive alveoli begin to develop profusely in the embryo around the

Correct AnswerverifiedShow Answer

-In these views of the trachea,what structure does number 2 indicate?

Correct AnswerverifiedShow Answer

What structure connects the larynx to the primary bronchi?

Correct AnswerverifiedShow Answer

The left primary bronchus is shorter,wider,and more vertically oriented than the right primary bronchus.

Correct AnswerverifiedFalse

Which statement is regarding the oropharynx?

Correct AnswerverifiedShow Answer

-In these views of the larynx,what structure does number 4 indicate?

Correct AnswerverifiedShow Answer

Select all that are in the medulla oblongata. ____ Ventral respiratory group ____ Dorsal respiratory group _____ Pneumotaxic group _____ Pontine respiratory center _____ Peripheral chemoreceptors

Correct Answerverified__X__ Ventral respiratory grou...View AnswerShow Answer

Which center inhibits the activity of the dorsal respiratory group (DRG) ?

Correct AnswerverifiedShow Answer

Which statement is true regarding the location of the trachea?

Correct AnswerverifiedShow Answer

What structures actually produce sound?

Correct AnswerverifiedShow Answer

What structure is also known as the "voice box"?

Correct AnswerverifiedShow Answer

Each lung consists of a number of segments called

Correct AnswerverifiedB

How long is the average trachea?

Correct AnswerverifiedShow Answer

Foreign particles

Correct AnswerverifiedShow Answer

The rate and depth of breathing is regulated by the _____ center.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
False

Correct Answer
verified

Correct Answer
verified

Select all that are in the medulla oblongata. __ Ventral respiratory group Dorsal respiratory group _ Pneumotaxic group _ Pontine respiratory center ___ Peripheral chemoreceptors

Correct Answer
verified
X Ventral respiratory grou...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified