The parasympathetic nervous system is required for life. It maintains such essential body functions as digestion and:
A. excretion
B. the response to stress
C. the fight-or-flight response
D. breathing
A
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Describe how the negative feedback system of the endocrine system is like a thermostat that controls the temperature of your home. Why are TSH levels inversely related to circulating thyroid hormone levels?
What will be an ideal response?
If a beta2-agonist agent and an anticholinergic agent were administered concurrently to a patient during an acute asthma episode, what result would be expected?
a. Bronchial smooth muscle contraction will occur. b. Airway edema will increase. c. The medications oppose each other, resulting in no airway changes. d. Bronchial smooth muscle relaxation will occur.
To ensure the safest response to an emergency scene, you should:
A: use escorts such as a police vehicle whenever it is possible. B: exceed the speed limit only when the call is a cardiac arrest. C: always operate the ambulance with due regard for others. D: have your siren on continuously until you arrive at the scene.
For an x-ray beam operated at 90 kVp, the required minimum filtration must be
a. 0.7 mm Al/Eq inherent plus 1.0 mm Al/Eq added. b. 1.0 mm Al/Eq inherent plus 1.5 mm Al/Eq added. c. 0.5 mm Al/Eq inherent plus 1.0 mm Al/Eq added. d. none of the above