The reflex arc is the short cut of signals through the spine

The reflex arc is the short cut of reflex actions, these require relay nerve cells in the spine that redirect signals to motor neurons, straight to muscles

Overview of neuron structure and function (article)

Myotatic Reflex - an overview

Reflex arc, Description & Components

Muscle Stretch Reflex - TeachMePhysiology

Reflexes - Physiopedia

Synapses & Reflexes - Reflexes and the Reflex Arc (GCSE Biology) - Study Mind

Spinal cord reflexes - Osmosis Library

Even after complex neural networks have come into existence, reflex arc actions continue to be more efficient for quick responses?

Reflexes – Boundless Anatomy and Physiology