Straighterline Anatomy and Physiology 2 BIO202
Topic 6: Respiratory System Quiz 2023
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BIO202_MH_V3
Topic 6: Respiratory System
Started on Saturday, June 10, 2023, 1:24 PM
State Finished
Completed on Saturday, June 10, 2023, 1:49 PM
Time taken 25 mins 41 secs
Grade 40.00 out of 40.00 (100%)
Question 1
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Question text
Which of the following statements concerning the larynx is correct?
Select one:
a. The larynx contains four unpaired cartilages.b. When the glottis closes, air is prevented from leaving the lungs.
c. Unlike other portions of the larynx, the epiglottis consists of some bony tissue.
d. The inferior laryngeal cartilage is the thyroid cartilage.
e. The epiglottis is also called "Adam's apple".
Question 2
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The serous membranes that surround the lungs are called the
Select one:
a. mucous membranes.
b. synovial membranes.
c. pleural membranes.
d. peritoneal membranes.
e. pulmonary membranes.
Question 3
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The respiratory zone of the tracheobronchial tree includes which of the following?
Select one:
a. trachea
b. alveoli
c. primary bronchi
d. larynx
e. tertiary bronchi
Question 4Correct
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During swallowing, the opening into the larynx is covered by the
Select one:
a. epiglottis.
b. thyroid cartilage.
c. cricoid cartilage.
d. arytenoid cartilage.
e. the "Adam's apple".
Question 5
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Question text
What type of alveolar cells produce surfactant?
Select one:
a. ciliated simple cuboidal epithelial cells
b. Type I pneumocytes
c. Type II pneumocytes
d. macrophages
Question 6
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Question textThe ventral respiratory group
Select one:
a. is located in the pons.
b. stimulates the intercostal and abdominal muscles.
c. is part of the pontine respiratory group.
d. is active only in exhalation.
e. stimulates the diaphragm.
Question 7
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During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to
increase and the pleural pressure to decrease. The pressure in his alveoli (Palv) will
Select one:
a. decrease below atmospheric pressure (PB), causing air to move out of his lungs.
b. become greater than atmospheric pressure (PB), causing air to move into his lungs.
c. decrease below atmospheric pressure (PB), causing air to move into his lungs.
d. become greater than atmospheric pressure (PB), causing air to move out of his lungs.
e. does not change.
Question 8
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Which of the following statements is true?
Select one:
a. As thoracic volume increases, alveolar pressure (Palv) increases.
b. In expiration, the thoracic volume increases.
c. Constriction of bronchioles assists breathing.d. As alveolar volume increases, alveolar pressure (Palv) decreases.
e. Pressure is directly proportional to volume.
Question 9
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The chemosensitive area of the brain is located in the
Select one:
a. pons.
b. cerebral peduncles.
c. cerebellum.
d. hypothalamus.
e. medulla oblongata.
Question 10
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With a respiratory rate of 12 breaths per minute and a tidal volume of 500mL, what would the minute
ventilation be?
Select one:
a. 500 mL per minute
b. 41.6 mL per minute
c. 600 mL per minute
d. 60 liters per minute
e. 6 liters per minute
Question 11
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The Bohr effect refers to the
Select one:
a. mechanism involved in diffusion of nitrogen into the blood.
b. physical laws governing the solubility of gases in fluids.
c. effect of pH on the oxygen-hemoglobin dissociation curve.
d. chemical equilibrium between carbonic acid and bicarbonate in the blood.
e. effect of temperature on the oxygen-hemoglobin dissociation curve.
Question 12
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A decrease in the surface area of the respiratory membrane will cause the diffusion rate to
Select one:
a. increase.
b. decrease.
c. remain unchanged.
Question 13
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Hyperventilation _____ plasma carbon dioxide levels which _____ plasma pH.
Select one:a. decreases; decreases
b. increases; decreases
c. increases; increases
d. decreases; increases
Question 14
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During exercise, the oxygen-hemoglobin dissociation curve
Select one:
a. shifts to the right.
b. shifts to the left.
c. doesn't shift.
Question 15
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Arrange the following in order from highest to lowest PO2.
(1) PO2 of pulmonary veins
(2) PO2 of pulmonary artery
(3) PO2 of alveolar air
Select one:
a. 1, 2, 3
b. 2, 1, 3
c. 2, 3, 1
d. 3, 1, 2
e. 3, 2, 1Question 16
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Which of the following is an effect of aging on the respiratory system?
Select one:
a. vital capacity is unchanged
b. minute ventilation rates increase
c. residual volume increases
d. gas exchange in the lungs remains unchanged
Question 17
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All of the following are changes seen in the respiratory system with aging, except
Select one:
a. Decreased vital capacity
b. Decreased maximum minute ventilation
c. Increased deadspace
d. Decreased inspiratory reserve volume
e. Decreased lung compliance
Question 18
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Indicate the statement that describes respiratory function in a highly trained athlete at maximal
exercise.
Select one:
a. Unchanged minute ventilation; increased respiratory rate; decreased vital capacity
b. Increased residual volume, respiratory rate; decreased alveolar ventilation
c. Increased tidal volume, unchanged minute ventilation and alveolar ventilation
d. Increased minute ventilation and alveolar ventilation, unchanged tidal volume
e. Increased tidal volume, minute ventilation and alveolar ventilation
Question 19
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If you exercise with enough intensity that the blood pH is changed, you have exceeded the _______.
Select one:
a. aerobic threshold
b. acidity point
c. base point
d. pH threshold
e. anaerobic threshold
Question 20
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During exercise, ventilation initially increases due to
Select one:
a. increased blood carbon dioxide levels stimulating baroreceptors.
b. decreased blood oxygen levels stimulating chemoreceptors.c. decreased blood pH levels stimulating baroreceptors.
d. limb movements that stimulate the respiratory center.
e. abrupt changes in metabolism or blood gases. [Show Less]