Frontal lobe: Located at the front of the brain, it is involved in executive functions such as decision-making, problem-solving, planning, personality expression.
Temporal lobe: Situated on each side of the brain above the ears; it plays key roles in auditory processing (sound perception), language comprehension, memory formation.
Brainstem: Connects the spinal cord with higher regions of the brain; it controls basic vital functions like breathing, heart rate, and blood pressure.