Final answer:
The prefrontal cortex (PFC) receives significant input from neurons called pyramidal cells. It is important because it plays a crucial role in executive functions such as decision making, problem-solving, planning, and impulse control.
Step-by-step explanation:
The prefrontal cortex (PFC) receives significant input from neurons called pyramidal cells. These cells are located in the cerebral cortex and send information to the PFC. The PFC is important because it plays a crucial role in various cognitive functions, known as executive functions. These include decision making, problem-solving, planning, and impulse control. The development and maturation of the PFC during adolescence are essential for the development of these executive functions.