This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, pheno_slim, vertebrate_core, human_reference_atlas

definition
  • A cranial nerve that runs to the eye muscles.
depicted by
  • https://upload.wikimedia.org/wikipedia/commons/3/33/Trochlear_nerve.png
development notes
  • The human trochlear nerve is derived from the basal plate of the embryonic midbrain.
external definition
  • Somatic efferent nerve which supplies a single eye muscle, the m. obliquus superior.[AAO]
has exact synonym
  • nervus trochlearis [IV]
  • trochlear IV nerve
  • trochlear nerve tree
  • superior oblique nerve
  • fourth cranial nerve
  • trochlear nerve [IV]
  • cranial nerve IV
has related synonym
  • trochlear
  • trochlear nerve or its root
  • nervus trochlearis
  • CN-IV
  • pathetic nerve
  • trochlear nerve/root
  • nerve IV
homology notes
  • We conclude this section by listing some of the many synapomorphies of craniates, including (...) (5) cranial nerves (...) (reference 1); Phylogenetically, the cranial nerves are thought to have evolved from dorsal and ventral nerves of a few anterior spinal nerves that became incorporated into the braincase. Dorsal and ventral nerves fuse in the trunk but not in the head, and they produce two series: dorsal cranial nerves (V, VII, IX, and X) and ventral cranial nerves (III, IV, VI, and XIII) (reference 2).[well established][VHOG]
id
  • UBERON:0001644
present in taxon
  • http://purl.obolibrary.org/obo/NCBITaxon_9606
taxon notes
  • Homologous trochlear nerves are found in all jawed vertebrates