A buildup of carbon dioxide in the blood is a characteristic of the sleep disorder known as
a. iatrogenic.
b. sleep apnea.
c. narcolepsy.
d. situational insomnia.
e. cataplexy.
Answer: b. sleep apnea.
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Which brain area receives incoming messages from the sense organs and bombards the cortex with stimulation, keeping the brain active and alert?
a. hypothalamus b. medulla c. reticular activating system d. limbic system
In an experiment studying classical conditioning, a tone sounds and 5 seconds later a mild skin shock is delivered to a participant. The skin shock results in a stress response consisting of a temporary increase in heart rate. This process is repeated once every 5 minutes. After a number of trials, the participant demonstrates an elevated heart rate when the tone sounds and before the shock is
actually delivered. Within the context of this example, what is the CS? A) the shock B) the tone C) the stress D) the time interval
The cochlear and vestibular nuclei are located in the a. midbrain
b. medulla. c. pons. d. cerebellum.
Which of the following is a risk factor for type 2 diabetes?
A. being obese B. being myopic C. being hyperactive D. being underweight