| Phenotype: | spinal accessory motor neuron axon decreased length, abnormal |
|---|---|
| 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: | spinal accessory motor neuron |
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| Synonyms: | SACMN |
| Definition: | A motor neuron that is located in the cervical region of the spinal cord and selectively innervates the sternocleidmastoid or trapezius muscle. Unlike other motor neurons, they extend axons dorsally along lateral margins of the spinal cord. |
| Ontology: | Anatomy Ontology [ZFA:0009311] |
| 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: | decreased length |
|---|---|
| Synonyms: | short, shortened, stubby |
| Definition: | A length quality which is relatively small. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000574] |