Question 1

-In these views of the trachea,what structure does number 1 indicate

Accepted Answer

A)  Trachealis muscle
B)  Thyroid cartilage
C)  Cricoid cartilage
D)  Anular ligament
E)  Tracheal cartilageF) A) and C)
G) C) and D)

Question 2

-In this sagittal section showing the upper respiratory tract,what bone does number 2 indicate

Accepted Answer

A)  Frontal bone
B)  Nasal bone
C)  Maxillary bone
D)  Ethmoid bone
E)  Sphenoid boneF) All of the above
G) A) and E)

Question 3

Which is not part of the conducting portion of the respiratory system

Accepted Answer

A)  Alveoli
B)  Trachea
C)  Larynx
D)  Nasal cavity
E)  BronchiF) All of the above
G) A) and B)

Question 4

The involuntary,rhythmic activities that deliver and remove respiratory gases are regulated in the

Accepted Answer

A)  brainstem.
B)  midbrain.
C)  cerebellum.
D)  cerebral nuclei.
E)  occipital lobe of the brain.F) A) and E)
G) B) and C)

Question 5

Where would you find the trachealis muscle

Accepted Answer

A)  Between the esophagus and the diaphragm
B)  Between the trachea and the diaphragm
C)  Superior to the larynx
D)  Between the esophagus and the trachea
E)  Between the larynx and the pharynxF) C) and E)
G) A) and B)

Question 6

Another name for the tertiary bronchi is the _________ bronchi.

Accepted Answer

The answer of Another name for the tertiary bronchi is...

Question 7

Which reaction involving CO2predominates within erythrocytes in the pulmonary capillaries of the lung

Accepted Answer

A)  HCO-3combines with H+to form H2CO3,which dissociates into CO2and H2O.
B)  HCO-3dissociates into H+,CO,and O2.
C)  CO2combines with H+to form HCO2.
D)  CO2combines with water to form bicarbonate ion and carbonic acid.E) B) and C)
F) A) and D)

Question 8

During expiration,relaxation of the diaphragm and external intercostals

Accepted Answer

A)  increases the volume of the thoracic cavity.
B)  increases the pressure in the thoracic cavity.
C)  expands the rib cage.
D)  flattens the floor of the thoracic cavity.
E)  stimulates the phrenic nerve.F) A) and E)
G) B) and C)

Question 9

As blood travels through a systemic capillary and exchanges gases with systemic cells,

Accepted Answer

A)  the partial pressure of oxygen in blood decreases as it goes from arterioles to venules.
B)  the partial pressure of oxygen in blood increases as it goes from arterioles to venules.
C)  the partial pressure of oxygen on blood remains the same as it goes from arterioles to venules.D) A) and B)
E) A) and C)

Question 10

Which statement is true regarding secondary bronchi

Accepted Answer

A)  The right lung has two secondary bronchi and the left lung has three secondary bronchi.
B)  The left lung has two secondary bronchi and the right lung has three secondary bronchi.
C)  Each lung has two secondary bronchi.
D)  Each lung has three secondary bronchi.
E)  Each lung has four secondary bronchi.F) B) and C)
G) C) and D)

Question 11

Most carbon dioxide is transported through the blood as bicarbonate dissolved in plasma.

Accepted Answer

A) True 
 B)False

Question 12

Terminal bronchioles of the lower respiratory system are lined with

Accepted Answer

A)  keratinized stratified squamous epithelium.
B)  simple cuboidal epithelium.
C)  pseudostratified ciliated columnar epithelium.
D)  stratified columnar epithelium.
E)  nonkeratinized stratified squamous.F) B) and D)
G) None of the above

Question 13

Which region(s) of the pharynx is lined by pseudostratified ciliated columnar epithelium

Accepted Answer

A)  Oropharynx
B)  Nasopharynx
C)  Laryngopharynx
D)  Oropharynx and nasopharynx
E)  Oropharynx,nasopharynx,and laryngopharynxF) C) and E)
G) B) and C)

Question 14

Compared to its partial pressure in the atmosphere,oxygen's partial pressure in the alveoli is

Accepted Answer

A)  higher.
B)  lower.
C)  equivalent.D) B) and C)
E) A) and C)

Question 15

Which is not part of the respiratory membrane

Accepted Answer

A)  Capillary endothelium
B)  Fused basement membrane
C)  Plasma membrane of Type I cell
D)  Plasma membrane of Type II cellE) None of the above
F) A) and B)

Question 16

Olfactory receptors located in the superior region of the nasal cavity are stimulated when airborne molecules are inhaled and dissolved in the mucous covering.

Accepted Answer

A) True 
 B)False

Question 17

An increase in the partial pressure of CO2causes bronchioles to

Accepted Answer

A)  constrict.
B)  dilate.C) A) and B)
D) undefined

Question 18

Mucous secretions of the respiratory tract include antimicrobial substances such as lysozyme and defensins.

Accepted Answer

A) True 
 B)False

Question 19

Which do not belong to the respiratory zone of the respiratory system

Accepted Answer

A)  Respiratory bronchioles
B)  Alveolar ducts
C)  Terminal bronchioles
D)  Pulmonary alveoli
E)  Alveolar sacsF) A) and D)
G) B) and D)

Question 20

At the inferior end of the trachea is an internal ridge of mucosal covered cartilage that initiates a cough reflex when it is stimulated;this structure is the __________.

Accepted Answer

The answer of At the inferior end of the trachea...

Exam 23: Respiratory System

At the inferior end of the trachea is an internal ridge of mucosal covered cartilage that initiates a cough reflex when it is stimulated;this structure is the __________.

Correct AnswerverifiedShow Answer

-In this sagittal section showing the upper respiratory tract,what bone does number 2 indicate

Correct AnswerverifiedShow Answer

-In these views of the trachea,what structure does number 1 indicate

Correct AnswerverifiedShow Answer

Mucous secretions of the respiratory tract include antimicrobial substances such as lysozyme and defensins.

Correct AnswerverifiedShow Answer

Most carbon dioxide is transported through the blood as bicarbonate dissolved in plasma.

Correct AnswerverifiedShow Answer

Which is not part of the conducting portion of the respiratory system

Correct AnswerverifiedShow Answer

Which is not part of the respiratory membrane

Correct AnswerverifiedShow Answer

An increase in the partial pressure of CO2causes bronchioles to

Correct AnswerverifiedShow Answer

Another name for the tertiary bronchi is the _________ bronchi.

Correct AnswerverifiedShow Answer

Which reaction involving CO2predominates within erythrocytes in the pulmonary capillaries of the lung

Correct AnswerverifiedShow Answer

As blood travels through a systemic capillary and exchanges gases with systemic cells,

Correct AnswerverifiedShow Answer

Olfactory receptors located in the superior region of the nasal cavity are stimulated when airborne molecules are inhaled and dissolved in the mucous covering.

Correct AnswerverifiedShow Answer

Terminal bronchioles of the lower respiratory system are lined with

Correct AnswerverifiedShow Answer

Which statement is true regarding secondary bronchi

Correct AnswerverifiedShow Answer

Where would you find the trachealis muscle

Correct AnswerverifiedShow Answer

The involuntary,rhythmic activities that deliver and remove respiratory gases are regulated in the

Correct AnswerverifiedShow Answer

During expiration,relaxation of the diaphragm and external intercostals

Correct AnswerverifiedShow Answer

Compared to its partial pressure in the atmosphere,oxygen's partial pressure in the alveoli is

Correct AnswerverifiedShow Answer

Which region(s) of the pharynx is lined by pseudostratified ciliated columnar epithelium

Correct AnswerverifiedShow Answer

Which do not belong to the respiratory zone of the respiratory system

Correct AnswerverifiedShow Answer

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An increase in the partial pressure of CO₂causes bronchioles to

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Which reaction involving CO₂predominates within erythrocytes in the pulmonary capillaries of the lung

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