| Phenotype: | dorsal spinal nerve myelination decreased occurrence, 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: | dorsal spinal nerve |
|---|---|
| Synonyms: | dorsal nerve |
| Definition: | Dorsal branch of the spinal nerve, coursing dorsally and caudally between the muscle and the vertebrae. It remains in the center of the muscle segment and could be followed to the dorsal aspect of the muscle. MiP primary motoneuron axons extend in this branch. |
| Ontology: | Anatomy Ontology [ZFA:0005663] |
| Name: | myelination |
|---|---|
| Synonyms: | myelinogenesis |
| Definition: | The process in which myelin sheaths are formed and maintained around neurons. Oligodendrocytes in the brain and spinal cord and Schwann cells in the peripheral nervous system wrap axons with compact layers of their plasma membrane. Adjacent myelin segments are separated by a non-myelinated stretch of axon called a node of Ranvier. |
| Ontology: | GO: Biological Process [GO:0042552] QuickGO AmiGO |
| Name: | decreased occurrence |
|---|---|
| Synonyms: | decreased incidence |
| Definition: | An occurrence which is relatively low. |
| Ontology: | Phenotypic Quality Ontology [PATO:0002052] |