| Phenotype: | Mauthner neuron axon fasciculation, abnormal |
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| Note: | This statement combines anatomy and/or ontology terms with phenotype quality terms to create a complete phenotype (EQ) statement. For detailed information on individual terms, click the hyperlinked term name. |
| Name: | Mauthner neuron |
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| Synonyms: | |
| Definition: | Is a hindbrain interneuron. Giant reticulospinal neurons possessing thick crossed axons and positioned dorsally in the hindbrain tegmentum at the level of entrance of the eighth cranial nerve. The Mauthner neuron is paired. The M-cell has two large invariant dendrites: The lateral dendrite terminates in the sensory neuropil of the acoustico-lateral area, and the ventral dendrite terminates in the neuropil of the motor tegmentum. Fine dendrites are present, and mostly arise from three regions; from the terminus of each major dendrite and from the ventral surface of the perikaryon. |
| Ontology: | Anatomy Ontology [ZFA:0009149] |
| Name: | axon |
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| 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 |
| Name: | fasciculation |
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| Synonyms: | |
| Definition: | A structural quality inhering in a bearer by virtue of whether the bearer forms a bundle of anatomical fibers, as of muscle or nerve. |
| Ontology: | Phenotypic Quality Ontology [PATO:0002013] |