You begin to doze off in class but suddenly come to awareness when your name is called.The brain part responsible for your sudden arousal is the
A) sympathetic nervous system.
B) reticular activating system (RAS).
C) thalamus.
D) pituitary gland.

Question

Quizplus · Accepted Answer

The reticular activating system (RAS) is responsible for maintaining consciousness and alertness. It is capable of quickly arousing the brain from a state of sleep or low arousal when important stimuli, such as hearing one's name, are detected.

You Begin to Doze Off in Class but Suddenly Come