Final answer:
Flo used her CNS and PNS to process the visual information of the incoming ball and execute voluntary movements to intercept and kick the ball, involving the connected functions of her central and peripheral nervous systems.
Step-by-step explanation:
In the scenario where Flo is a defender on her school’s soccer team and reacts to a ball kicked at her, Flo used her CNS and PNS. When she sees the ball and determines its speed and angle, her central nervous system (CNS) is processing the visual information. Her decision to move and the voluntary movement of stepping forward and kicking the ball away are controlled by her somatic nervous system, which is a part of the peripheral nervous system (PNS) responsible for voluntary movements and motor responses. Although the question does not specifically mention stress or emergency situations which would involve the autonomic nervous system (under the PNS), it's necessary to consider that the CNS and PNS work in tandem to process sensory information and initiate motor responses.