Term: cranial nerve IV axon
Name: cranial nerve IV
Synonyms: CN-IV, trochlear, trochlear nerve
Definition: Cranial nerve that innervates the oculomotor system. The trochlear nerve is the only motor nerve to project dorsally and then cross the midline before exiting the neuroepithelium and re-orienting ventrally to project to the contralateral superior oblique extraocular muscle.
Ontology: Anatomy Ontology [ZFA:0000600]

Name: axon
Synonyms:
Definition: The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
Ontology: GO: Cellular Component [GO:0030424]    QuickGO    AmiGO