Editing Withdrawal reflex (section)

==Crossed extension reflex following withdrawal reflex==
{{main|Crossed extensor reflex}}
Once a danger receptor (called "nociceptor") has been stimulated, the signal travels via the sensory nerve to the dorsal (posterior) horn of the spinal cord. The nerve synapses with ipsilateral motor neurons that exit the ventral (anterior) horn of the spinal cord and work to pull the soon-to-be injured body part away from danger within 0.5 seconds.<ref name="soscad" /> At the same time, the sensory neuron synapses with the ipsilateral motor neuron, as well as the motor neuron in the contralateral anterior horn.<ref name="sestta" /> This motor neuron stabilizes the uninjured side of the body (for instance; preparing the other leg to support the entire body weight when the other foot has stepped on a tack). At the same time as these two synapses, the sensory neuron also sends signals along the spinal cord to get motor neurons to contract muscles that shift the center of gravity of the body to maintain balance. This contralateral stimulation of motor neurons to stabilize the body is called the crossed extension reflex, and is a result of the withdrawal reflex (usually in the lower extremities).<ref>{{cite book | last1 = Saladin | first1 = KS | year = 2018 | title = Anatomy and Physiology: The Unity of Form and Function | edition = 8th | location = New York | publisher = McGraw-Hill | isbn = 978-1-259-27772-6 | chapter = Chapter 13 - The Spinal Cord, Spinal Nerves, and Somatic Reflexes | at = The Crossed Extension Reflex, p. 498}}</ref>