Variations in respiratory rate is a symptom of
A. sinus arrhythmia.
B. ventricular tachycardia.
C. SA node block.
D. paroxysmal atrial tachycardia
A
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Which of the following describes the process of breathing?
A. Movement of air into and out of lungs B. Delivery of oxygen to cells C. Delivery of carbon dioxide to cells D. Forcible movement of oxygen molecules into the bloodstream
Match the hormone with its appropriate function.A. Stimulates synthesis of thyroid hormonesB. Increases adrenal cortex secretionsC. Development of immune systemD. Milk productionE. Decreases blood Ca2+ levelsCalcitonin
Fill in the blank(s) with the appropriate word(s).
Which chamber of the inner ear receives sound waves directly from the oval window?
A. Scala tympani B. Cochlear duct C. Vestibule D. Scala media E. Scala vestibuli
Which of these functions is not associated with the reticular formation?
A. Habituation B. Sleep C. Pain modulation D. Cardiovascular control E. Hunger