Final answer:
In the context of the peripheral nervous system, the most likely process that occurred when Idris made a hole in one in golf is the activation of motor neurons, which are part of the coordinated muscle movement and motor response involved in swinging the golf club.
Step-by-step explanation:
When Idris makes a hole in one and wins his high school golf tournament, a process of the peripheral nervous system that most likely occurred is the activation of motor neurons. This is part of a motor response that involves the coordination of muscles and movement. Initially, a neuron in the cerebral cortex will transmit a nerve impulse to a neuron in the spinal cord, which in turn sends the signal to a muscle to contract, resulting in the swinging of the golf club. This pathway includes the release of acetylcholine, a neurotransmitter, at the neuromuscular junction, ultimately causing muscle contraction. This is part of a motor pathway comprising upper and lower motor neurons, where the upper motor neuron's cell body is in the cerebral cortex and it synapses on a cell in the gray matter of the spinal cord, and the lower motor neuron is that cell in the spinal cord with its axon extending into the periphery to the muscle.