A student nurse asks the nurse what controls reflex activities concerned with heart rate and blood pressure. What is the nurse's best response? These reflex activities are controlled by the:
a. medulla oblongata.
b. pons.
c. midbrain.
d. cerebrum.
ANS: A
The medulla oblongata, not the pons, controls reflex activities, such as heart rate, respiration, blood pressure, coughing, sneezing, swallowing, and vomiting. The midbrain is primarily a relay center for motor and sensory tracts, as well as a center for auditory and visual reflexes. The cere-brum plays a role in the transfer of information.
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