refers to the cone-shaped part of a neuron cell body from which the axon originates. Depolarization must reach a critical threshold at the axon hillock for the axon to propagate a nerve impulse.

AXON HILLOCK: "The axon hillock of a neuron is the cone-shaped part of the cell body."
Cite this page: N., Pam M.S., "AXON HILLOCK," in, April 7, 2013, (accessed February 26, 2021).