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During forced breathing, which of the following occurs during inhalation?
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The diaphragm and external intercostal muscles (quiet normal breathing) are controlled by the
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Respiratory System

QuestionAnswer
During forced breathing, which of the following occurs during inhalation? The expiratory center of the VRG is inhibited.
The diaphragm and external intercostal muscles (quiet normal breathing) are controlled by the DRG
Which statement regarding respiration is true? The sternocleidomastoid muscle works to elevate the rib cage.
Which body system, in addition to respiration, does the nasal cavity service? endocrine
Air entering the body is filtered, warmed, and humidified by the upper (conducting) portion of the respiratory tract.
A young teen, balancing precariously on a bridge, topples and falls into icy-cold rushing water. EMT successfully pull him out, and although he is still breathing. What is an expected effect of this disturbance in respiratory equilibrium? 2. *increased carbon dioxide levels in the cerebrospinal fluid
Which of the following factors would increase the amount of oxygen released by hemoglobin from the bloodstream? decreased pH and increased temperature
About how much of the oxygen content of arterial blood consists of oxygen molecules in the plasma (or in solution)? 1.5%
As the diaphragm contracts, all of the following events occur EXCEPT _________. he rib cage is elevated the pressure inside the thoracic cavity decreases below that of atmospheric air exhalation the size of the thoracic cavity increases exhalation
Breathing through the nose rather than breathing through the mouth is advantageous because air is warmed on inhalation
During exhalation, a molecule of carbon dioxide would pass through what structure after the trachea? larynx
Microorganisms removed from incoming air by the mucus of the respiratory tract are ultimately exposed to stomach acids and enzymes
A hyperventilating aspiring actress is breathing with a rate and depth exceeding the demands for oxygen delivery. Which of the following represents a typical homeostatic response to this disturbance of equilibrium? inhibiton of respiatory muscles
Which of the following gases has the highest partial pressure in saturated alveolar air? nitrogen
Which of the following is the correct flow of air being inhaled? larynx, laryngopharynx, nasopharynx, oropharynx
Destruction of the alveolar macrophages would result in _________. an increased rate of infection
Which of the following factors would decrease hemoglobin's affinity for oxygen? a decrease in the pH of the interstitial fluids
Which of the following is NOT a function of the respiratory system? execretion
What drives normal pulmonary ventilation? volume and pressure changes in the lungs and pleural cavities
Created by: iessnorris
 

 



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