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WEEK 5 KNOWLEDGE CHECK EXAM WITH ANSWERS GRADED A+ -5 (NRNP 6540).
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WEEK 5 KNOWLEDGE CHECK EXAM WITH ANSWERSGRADED A+ #5 (NRNP 6540)
B - correct answer As blood moves from the pulmonary trunk to the pulmonary veins,
the partial pressure of carbon
Dioxide in that blood will:
A) increase
B) decrease
D - correct answer Which of the following bones does NOT contain a paranasal sinus?
A. Sphenoid
B. Maxillary
C. Ethmoid
D. Nasal
E. Frontal
E - correct answer Which of the following muscles contracts during quiet expiration?
A. Diaphragm
B. Internal intercostals
C. External intercostals
D. Pectoralis minor
E. None of the above
E - correct answer Pulmonary surfactant:
A. Prevents alveolar collapse
B. Reduces alveolar surface tension
C. Increases lung compliance
D. Is secreted by type II alveolar cells
E. All of the above
B - correct answer Which of the following factors decreases airway resistance?
A. Increased parasympathetic nervous activity
B. Epinephrine
C. Histamine
D. Accumulation of mucus within bronchioles
E. None of the above
E - correct answer The smallest airways in the conducting zone are the:
A. Pharynxes
B. Alveolar ducts
C. Pulmonary capillaries
D. Bronchi
E. Terminal bronchioles
C - correct answer Which of the following is NOT a function of the conducting zone of
the respiratory system?
,A. Humidifying air
B. Warming air
C. Gas exchange
D. Mucus secretion
E. Filtration
C - correct answer Which of the following is a component of pulmonary gas exchange?
A. Ventilation
B. O2 transport
C. Diffusion of N2 from alveoli to blood
D. Diffusion of CO2 from tissues to blood
E. Production of ATP within cellular mitochondria
E - correct answer A rise in blood PCO2 causes all of the following EXCEPT:
A. An increase in the H+
Concentration
B. A rise in bicarbonate concentration
C. A rise in the concentration of carbaminohemoglobin
D. A decrease in ph
E. An increase in the affinity of hemoglobin for oxygen
A - correct answer During hyperventilation, which of the following would be expected to
happen?
A. An increase in the Po2 of arterial blood
B. An increase in the PCO2 of arterial blood
C. An increase in the acidity of arterial blood
D. An increase in the bicarbonate concentration of arterial blood
E. All of the above
A - correct answer Which of the following exerts the most control of respiratory rate?
A. Ventral medulla oblongata
B. Dorsal medulla oblongata
C. Pons
D. Midbrain
E. Tectum
A - correct answer Which of the following is NOT a potential cause of metabolic
acidosis?
A. Severe vomiting
B. Severe diarrhea
C. Starvation
D. Diabetic crisis
E. Kidney disease
C - correct answer Which of the following is the most potent respiratory stimulus?
A. Low plasma ph
, B. High plasma ph
C. Low CSF ph
D. Low CSF PO2
E. High plasma PCO2
A - correct answer During inspiration, pressure will be lowest in which of the following?
A. Alveolar duct
B. Trachea
C. Secondary bronchus
D. Laryngopharynx
E. Nasal cavity
D - correct answer In which of the following will the partial pressure of oxygen be the
highest?
A. Right atrium
B. Inferior vena cava
C. Pulmonary artery
D. Femoral artery
E. Mitochondria
E - correct answer Which of the following is TRUE?
A. The space just superior to the epiglottis is known as the glottis.
B. The anterior portion of the hard palate is made of the horizontal plates of the ethmoid
bone.
C. The entire pharynx is lined by respiratory epithelium
D. The nasopharynx contains the palatine tonsil.
E. None of the above
E - correct answer . Which of the following is the most SUPERIOR?
A. Lung hilus
B. Sigmoid colon
C. Esophageal hiatus
D. Gastric pits
E. Carina
C - correct answer Which of the following refers to the exchange of carbon dioxide and
oxygen between systemic tissues
And systemic capillaries?
A. Pulmonary ventilation
B. External respiration
C. Internal respiration
D. Cellular respiration
E. Acellular respiration
E - correct answer All of the following are functions of the respiratory system EXCEPT:
A. Regulation of plasma ph
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