apII; respiratory quiz (10 questions)

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Use of the accessory respiratory muscles is characteristic of forced breathing, or hyperpnea. eupnea. dyspnea. hypoxia. apnea.

hyperpnea

Severing the sensory fibers from the lungs would result in all of the following except less inhibition of the inspiratory center during forced breathing. a drop in tidal volume. potential damage to the lungs due to overinflation. a disappearance of the Hering-Breuer reflexes. less stimulation of the expiratory center during forced breathing.

a drop in tidal volume

The most superior portion of the lung is called the base. apex. cardiac notch. hilus. epipleurium.

apex

Asthma is a collapsed lung resulting from insufficient production of surfactant. due to an excessive stimulation of smooth muscle in bronchioles. an obstructive tumor targeting primarily the terminal bronchioles. characterized by fluid buildup in the alveoli. caused by Mycobacterium tuberculosis.

due to an excessive stimulation of smooth muscle in bronchioles

What occurs if intrapulmonic pressure is 763 mm Hg? hyperventilation exhalation pause in breathing apnea inhalation

exhalation

Which of the following statements about the chloride shift is false? It involves a movement of chloride ion into RBCs. It depends on the chloride-bicarbonate countertransporter. It involves a movement of bicarbonate ions into the plasma. It is driven by a rise in PCO2. It causes RBCs to swell.

it causes RBCs to swell

The C shape of the tracheal cartilages is important because large masses of food can move through the esophagus. large masses of air can pass through the trachea and thus the bronchi. it facilitates turning of the head. the bronchi are also C-shaped. it permits the trachea to pinch shut prior to sneezing.

large masses of food can move through the esophagus

Decompression sickness is a painful condition that develops when a person is exposed to a sudden drop in atmospheric pressure. Bubbles of ________ gas are responsible for the problem. nitrogen oxygen carbon dioxide helium carbon monoxide

nitrogen

When the diaphragm and external intercostal muscles contract, the volume of the thorax increases. the volume of the thorax decreases. the volume of the lungs decreases. the lungs shrink. expiration occurs.

the volume of the thorax increases

The unit of measurement for pressure preferred by many respiratory therapists is mm Hg. torr. cm H2O. psi. centigrade.

torr


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