Anatomy
- The trochlear nucleus is located in the midbrain, specifically in the caudal rostral region.
- It is positioned between the superior colliculus and inferior colliculus.
- The trochlear nucleus is situated near the midline of the brain.
- It is embedded within the medial longitudinal fasciculus.
- The trochlear nucleus is located below the nucleus of the oculomotor nerve.
Blood supply
- The trochlear nucleus receives arterial blood supply from the posterior cerebral artery, superior cerebellar artery, and basilar artery.
- Disruption of blood flow through these vessels can affect the blood supply to the trochlear nucleus.
Related structures
- The trochlear nerve is related to the trochlear nucleus.
Additional images
- Nuclei of origin of cranial motor nerves schematically represented; lateral view.
- Scheme showing central connections of the optic nerves and optic tracts.
- Brain stem sagittal section.
References
- Trochlear Definition of Trochlear by Oxford Dictionary on Lexico.com also meaning of Trochlear.
- Kim, Seung Y.; Motlagh, Mahsaw; Naqvi, Imama A. (2022), Neuroanatomy, Cranial Nerve 4 (Trochlear), StatPearls, Treasure Island (FL): StatPearls Publishing, PMID30725929, retrieved 2023-01-03.
- Baxter, Donald; Olsewski, Jerzy (1982). Cytoarchitecture of the Human Brain Stem (2nd ed.). Basel: S. Karger. pp.50–51. ISBN3-8055-2210-X.
- This neuroanatomy article is a stub. You can help Wikipedia by expanding it.
- Retrieved from https://en.wikipedia.org/w/index.php?title=Trochlear_nucleus&oldid=1180392775.
The nucleus of the trochlear nerve (/ˈtrɒklɪər/) is a motor nucleus in the medial midbrain giving rise to the trochlear nerve (cranial nerve IV).
| Trochlear nucleus | |
|---|---|
 Outline of the nucleus raphes dorsalis: DRif interfascicular subnucleus, DRv ventral subnucleus DRvl ventrolateral subnucleus DRd dorsal subnucleus mlf medial longitudinal fasciculus Aq cerebral aqueduct IVn trochlear nucleus. | |
 The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Trochlear is "IV") | |
| Details | |
| Identifiers | |
| Latin | nucleus nervi trochlearis |
| NeuroNames | 513 |
| NeuroLex ID | birnlex_1488 |
| TA98 | A14.1.06.319 |
| TA2 | 5890 |
| FMA | 54518 |
| Anatomical terms of neuroanatomy | |
