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Trochlear nerve

The trochlear nerve (/ˈtrɒklɪər/), (lit. pulley-like nerve) also known as the fourth cranial nerve, cranial nerve IV, or CN IV, is a cranial nerve that innervates a single muscle - the superior oblique muscle of the eye (which operates through the pulley-like trochlea). Unlike most other cranial nerves, the trochlear nerve is exclusively a motor nerve…

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FMA
50865
Innervates
Superior oblique muscle
Latin
nervus trochlearis
MeSH
D014321
NeuroNames
466
TA2
6191

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Clinical significance

Other animals

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Map overview Semantic statistics

Trochlear nerve

Nodes55
Edges54
Triples53
Avg. degree1.96
Density0.036364
Components1

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Trochlear nerve

Top relations

related to External links · 13
Trochlear nerve → Animations, Georgetown University, IV, Liverpool, LoyolaGrossanatomy/, MedEd, Neurolex, NeuroNamesoph/697, The Anatomy Lesson, Trochlear, Trochlear Nerve Palsy, University, Wesley Norman
related to Clinical assessment · 8
Trochlear nerve → Alfred Bielschowsky's, Common, Diplopia, However, IV, The, Therefore, When
related to Additional images · 7
Trochlear nerve → Deep, Dissection, Dura, Hind, Superior, Trochlear, Upper
related to Torsional diplopia · 5
Trochlear nerve → The, To, Torsion, Trochlear, Weakness
related to Course · 4
Trochlear nerve → Each, Finally, From, It
related to Vertical diplopia · 4
Trochlear nerve → Injury, The, This, To
related to Other animals · 2
Trochlear nerve → Homologous, The
FMA · 1
Trochlear nerve → 50865
Innervates · 1
Trochlear nerve → Superior oblique muscle
Latin · 1
Trochlear nerve → nervus trochlearis

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Important terminology

nerve trochlear superior muscle cranial oblique fourth citation needed nerves brainstem eye trochlea nucleus contralateral diplopia damage ed clinical iv

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Trochlear nerveFMA508651.00infobox
Trochlear nerveInnervatesSuperior oblique muscle1.00infobox
Trochlear nerveLatinnervus trochlearis1.00infobox
Trochlear nerveMeSHD0143211.00infobox
Trochlear nerveNeuroNames4661.00infobox
Trochlear nerveTA261911.00infobox
Trochlear nerveTA98A14.2.01.0111.00infobox
Trochlear nervecausesweakness of downward eye movement with consequent vertical diplopia0.90text
Trochlear nerverelated to Additional imagesDura0.60section
Trochlear nerverelated to Additional imagesHind0.60section
Trochlear nerverelated to Additional imagesDissection0.60section
Trochlear nerverelated to Additional imagesUpper0.60section

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