spinal cord Flashcards
(12 cards)
Association neuron
Ventral horn
Lower motor neuron
Ventral root
Skeletal Muscle
Lateral Spinothalmic Tract
Upper motor neuron Ventral horn Lower motor neuron Ventral root Skeletal muscle
what processes sensory information and relays it to the Basal ganglia?
thalmus
withdrawal reflex
at the level of the spinal cord, interneurons synapse on motor neurons in the anterior grey horn, stimulating flexor muscles to withdrawal ur hand
pain sensation relay
pain conveyed to brain via spinothalmic tract
what is arranged at different levels of the spinal cord?
nuclei or cell columns
what modulates incoming pain impulses?
substaintia gelationosa
what contains cells that receive incoming sensory impluses and has axons that form ascending tracts?
nucleus proprius
what contains cells that receive incoming sensory impluses and has axons that form ascending tracts?
nucleus proprius (all throughout the entire cord cause u wanna feel pain and temp)
provides LMN fiber for innervation of UE muscles
Lateral Motor Cell Column
Provides LMN fibers for innervation of trunk muscles
Medial Motor Cell Column
HAL - The Homunculus
head arms legs