Derek dropped a hammer on his foot and shrieked a split second later at the intense pain from a newly broken toe.How did the almost instantaneous pain signals travel

A)  along thick, myelinated A-delta fibres 
B)  through periacqueductal gray neurons in the midbrain 
C)  along thin, unmyelinated C fibres 
D)  through gated endorphin pathways in the hypothalamus

Myelinated A-Delta Fibres

Nerve fibers that are coated with myelin, enhancing the speed of electrical impulses and involved in transmitting sharp, quick pain signals.

Unmyelinated C Fibres

Nerve fibers lacking a myelin sheath that are primarily involved in transmitting slow pain signals to the brain.

Pain Signals

Pain signals are neurological transmissions indicating harm or potential damage to the body, alerting the brain to discomfort or injury.