Magendie’s law

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Magendie’s law is a principle in neurophysiology stating that the anterior (ventral) spinal nerve roots are primarily motor while the posterior (dorsal) roots are primarily sensory.

All labels observed (5)

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Statements (36)

Predicate Object
instanceOf law in neuroanatomy
neurophysiological principle
alsoKnownAs Bell–Magendie principle
linked to: Magendie’s law

Magendie law
linked to: Magendie’s law
appliesTo spinal cord
spinal nerve roots
category principle of functional localization
clarifies direction of information flow in spinal roots
functional organization of spinal nerves
component dorsal spinal nerve roots
ventral spinal nerve roots
concerns dorsal root ganglion
reflex arcs
somatic nervous system
describes functional difference between ventral and dorsal spinal nerve roots
evidenceType experimental lesion studies in animals
field neuroanatomy
neurophysiology
hasLimitation does not account for all mixed or autonomic fibers
historicalContext formulated in the 19th century
influenced development of experimental physiology
language English label "Magendie’s law"
linked to: Magendie’s law
namedAfter François Magendie
relatedConcept Bell–Magendie law
linked to: Magendie’s law
relatedTo Charles Bell’s work on spinal roots
relatesTo afferent nerve fibers
efferent nerve fibers
motor function
sensory function
states anterior (ventral) spinal nerve roots are primarily motor
posterior (dorsal) spinal nerve roots are primarily sensory
supports localization of spinal cord lesions
usedIn clinical neurology
medical education
neuroanatomy teaching
neurosurgery

How these facts were elicited

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

François Magendie notableFor Magendie’s law
François Magendie formulated Magendie’s law
Magendie’s law relatedConcept Bell–Magendie law
linked to: Magendie’s law
Magendie’s law language English label "Magendie’s law"
linked to: Magendie’s law
Magendie’s law alsoKnownAs Magendie law
linked to: Magendie’s law
Magendie’s law alsoKnownAs Bell–Magendie principle
linked to: Magendie’s law