| Phenotype: | brain has extra parts of type astrocyte, 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: | brain |
|---|---|
| Synonyms: | brain structure |
| Definition: | Cavitated compound organ which is comprised of gray and white matter and surrounds the cerebral ventricular system. |
| Ontology: | Anatomy Ontology [ZFA:0000008] |
| Name: | has extra parts of type |
|---|---|
| Synonyms: | has extra parts of, has increased number of, having extra physical parts, having supernumerary physical parts, increased number of |
| Definition: | The bearer of this quality has_part > n of the indicated entity type, where n is the normal amount for a comparable organism. Note that the bearer of the quality is the whole, not the part. |
| Ontology: | Phenotypic Quality Ontology [PATO:0002002] |
| Name: | astrocyte |
|---|---|
| Synonyms: | astrocytes |
| Definition: | A class of large neuroglial (macroglial) cells in the central nervous system - the largest and most numerous neuroglial cells in the brain and spinal cord. Astrocytes (from 'star' cells) are irregularly shaped with many long processes, including those with 'end feet' which form the glial (limiting) membrane and directly and indirectly contribute to the blood-brain barrier. They regulate the extracellular ionic and chemical environment, and 'reactive astrocytes' (along with microglia) respond to injury. |
| Ontology: | Anatomy Ontology [ZFA:0009075] |